HP Dc7100 HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r
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- HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 1
Guide HP Compaq Business Desktop dc7100 Series 3rd Edition Document Part Number: 361288-003 3rd Edition, November 2005 2nd Edition, October 2004 1st Edition, July 2004 This document provides information on the removal and replacement of all parts as well as information on troubleshooting, Desktop - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 2
this manner indicates that failure to follow directions could result in damage to equipment or loss of information. Service Reference Guide HP Compaq Business Desktop dc7100 Series Third Edition (November 2005) Second Edition (October 2004) First Edition (July 2004) Document Part Number: 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 3
a Backup File-Windows XP Professional 1-2 1.3.2 Restoring from the Backup File-Windows XP Professional 1-2 1.4 Converting to NTFS 1-2 1.5 HP Software 1-2 2 Setup Utilities and Diagnostics Features 2.1 Power-On Self-Test (POST 2-1 2.2 Computer Setup Utilities 2-2 2.2.1 Using Computer Setup (F10 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 4
Computer Setup 3-17 3.4.3 Establishing a Power-On Password Using Computer Power Supply Chassis, Routine Care, and Disassembly Preparation 5.1 Chassis Designations 5-1 5.1.1 Convertible Minitower (CMT 5-1 5.1.2 Small Form Factor (SFF 5-2 5.1.3 Ultra-Slim Desktop (USDT Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 5
Mouse 5-7 5.5 Service Considerations 5-8 5.5.1 Power Supply Fan 5-8 5.5.2 Tools and Software Requirements 5-8 5.5.3 Screws 5-8 5.5.4 Cables and Connectors 5-9 5.5.5 Hard Drives 5-9 5.5.6 Lithium Coin Cell Battery 5-9 6 Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 6
7-61 8 Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.1 Preparation for Disassembly 8-1 8.2 External Security Devices 8-3 8.2.1 Installing a Cable Lock 8-3 8.2.2 Installing a Padlock 8-4 8.3 Computer Access Panel 8-5 vi 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 7
20.3Type 3 Battery 8-30 8.21Speaker 8-31 8.22System Board 8-32 A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E System Board and Riser Card Reference Designators F Memory Index Service Reference Guide, dc7100 361288-003 vii - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 8
Contents viii 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 9
Download drivers and software, enter the model number of the computer, and press Enter. You can also obtain the latest support software on CDs. The following Web site provides information on how to purchase a support software CD subscription: http://h18000.www1.hp.com/support/files/desktops/us - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 10
the Backup File-Windows XP Professional 1. Click Computer Setup Utilities ■ HP Support Software including device drivers ■ Configuration Record ■ Online Safety & Comfort Guide ■ Power Management with energy saver features ■ Security Management tools 1-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 11
of these files, in English and selected other languages, in one of three ways: ■ Support Software CD ■ HP Web site at www.hp.com ■ Restore Plus! CD, which is supplied with many HP models ✎ Additional HP software may be required in certain situations. Service Reference Guide, dc7100 361288-003 1-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 12
Installing the Operating System 1-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 13
computer system when contacting Customer Support. not be available on all HP products. 2.1 Power-On Self-Test (POST computer system is functioning properly: ■ Keyboard ■ Memory modules ■ All mass storage devices ■ Processors ■ Controllers ✎ If the Power Service Reference Guide, dc7100 361288-003 2-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 14
by saving system configuration information on diskette and restoring it on one or more computers. ■ Execute self-tests on a specified ATA hard drive (when supported by drive). ■ Enable or disable DriveLock security (when supported by MultiBay drive). 2-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 15
system defaults. Ä CAUTION: Do NOT turn the computer power OFF while the ROM is saving your F10 Computer Setup changes because the CMOS could become corrupted. It is safe to turn off all power to the computer after you exit the F10 Setup screen. Service Reference Guide, dc7100 361288-003 2-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 16
. Exits Computer Setup without applying or saving any changes. Saves changes to system configuration or default settings and exits Computer Setup. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 17
Utilities and Diagnostics Features Description Lists all installed BIOS-controlled storage devices. When a device is selected DMA 0, and Max UDMA. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 361288-003 2-5 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 18
and write requests with DMA data transfers. When "Disable" is selected, the BIOS will service ATA device read and write requests with PIO data transfers. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 19
with Microsoft Windows 2000 and Windows XP. • SATA Windows 98 and earlier operating systems. • PATA Primary Device 0 replaces SATA 1 • PATA Primary Device 1 replaces Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 20
cover has been removed. This feature is supported on select models only. See the Desktop Management Guide on the Documentation CD for more information. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 21
prevent OS security breaches. ✎ This selection is in effect only if the processor and operating system being used comprehend and utilize the function. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 361288-003 2-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 22
enables or disables SATA bus and/or device power management. Thermal Fan idle mode - This bar graph controls the minimum permitted fan speed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 23
will allow Microsoft Windows Operating Systems to run optimally. This feature must be disabled for certain non-Microsoft Operating Systems to work properly. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 24
palette snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-12 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 25
only if there are multiple PCI video adapters in the system. Allows you to specify which VGA controller will be the "boot" or primary VGA controller. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 361288-003 2-13 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 26
. Running tests is optional but recommended after installing or connecting a new device. Third party devices not supported by HP may not be detected by Diagnostics for Windows. Save, print, or display the information generated by the utility. 2-14 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 27
Windows. ✎ If you want to upgrade an existing version of Diagnostics for Windows installed on the computer, visit http://www.hp.com/support/files and click on an applicable product. Locate the desired software and download the latest version. Execute the downloaded file and select Repair to update - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 28
-Keyboard, mouse, and joystick(s) ❏ Communication-Ports ❏ Storage-Storage drives ❏ Graphics-Graphics ❏ Memory-System board and Windows memory ❏ Multimedia-Optical storage (CD, DVD, and so on) and audio ❏ Windows-Windows ❏ Architecture-PCI Device 2-16 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 29
hard drives ❏ Miscellaneous-CMOS, DMI, BIOS, System, Product Name, and Serial Number ■ Navigation-Previous Category (F5), Next Category (F6) ■ Level-Less (F7), More (F8) ■ Tab ❏ Overview-Displays general information about the computer. This window is displayed when first - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 30
This utility allows the resolution of problems without taking the computer offline and assists in maximizing the computer availability. The information obtained by the utility is useful in troubleshooting system problems, and streamlines the service process by enabling quick and easy identification - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 31
of the computer periodically allows the user to keep a history of the configuration. This history may be useful to you in the future if the system ever encounters a problem that needs debugging. 4. To exit Configuration Record, click File, then click Exit. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 32
Setup Utilities and Diagnostics Features 2-20 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 33
installation ■ Software updating and management ■ ROM flash ■ Asset tracking and security ■ Fault notification and recovery ✎ Support for specific features described in this guide may vary by model or software version. 3.1 Initial Configuration and Deployment HP computers come with a preinstalled - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 34
with thermal warnings, memory alerts, and more ■ Remote updating of system software such as device drivers and ROM BIOS ■ Remote changing of boot order For more information on the HP Client Manager, visit http://h18000.www1.hp.com/im/client_mgr.html. 3-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 35
as a file store. Driver versions that are supported by SSM are denoted with a special icon on the driver download Web site and on the Support Software CD. To download the utility or to obtain more information on SSM, visit http://www.hp.com/go/ssm. Service Reference Guide, dc7100 361288-003 3-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 36
updated or overwritten. This is important to ensure the operating integrity of the computer. Should you need or want to upgrade your ROM, you may: ■ Order an upgraded ROMPaq™ diskette from HP. ■ Download the latest ROMPaq images the HP driver and support page, http://www.hp.com/support - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 37
Desktop Management 3.3.8 HPQFlash The HPQFlash utility is used to locally update or restore the system ROM on individual PCs through a Windows operating system. For more information on HPQFlash, visit http://www.hp.com/support/files and enter the name of the computer when prompted. 3.3.9 FailSafe - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 38
-specific. File system corruption may result if source and target computers are not the same model. For example, do not copy the setup configuration from a dc7100 Ultra-Slim Desktop to a dx6100 Slim Tower. 1. Select a setup configuration to copy. Turn off the computer. If you are in Windows, click - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 39
. Copying to Multiple Computers Ä CAUTION: A setup configuration is model-specific. File system corruption may result if source and target computers are not the same model. For example, do not copy the setup configuration from a dc7100 Ultra-Slim Desktop to a dx6100 Slim Tower. This method takes - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 40
Desktop dc7100 series ❏ HP Compaq Business Desktop dx6100 series ❏ HP Compaq Business Desktop d530 Series - Ultra-Slim Desktop, Small Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 41
large disk support. 5. Enter Choice [5] to display the drives in the system. The USB flash media device will be the drive that closely matches the size of one and reboot the computer. The computer will boot to the USB flash media device as drive C. Service Reference Guide, dc7100 361288-003 3-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 42
Desktop dc7100 series ❏ HP Compaq Business Desktop dx6100 series ❏ HP Compaq Business Desktop d530 Series-Ultra-Slim Desktop, Small Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-Slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 43
a DOS version from Windows 9x, you may see a brief Windows logo screen. If you do not want this screen, add a zero-length file named LOGO.SYS to the root directory of the USB flash media device. Return to "Copying to Multiple Computers" on page 7. Service Reference Guide, dc7100 361288-003 3-11 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 44
and installing the latest support software easier. You can download the software from http://www.hp.com/support. The Web site contains the latest device drivers, utilities, and flashable ROM images needed to run the latest Microsoft Windows operating system on the HP computer. 3.3.13 Building Blocks - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 45
See the Desktop Management Guide on the Documentation CD for more information. ✎ For more information about Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific computer configuration. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 46
locale setting (for example, English or German) for System ID entry. ✎ For more information about Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific computer configuration. 3-14 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 47
the BIOS during the next reboot, and an MBR Security warning message will be displayed. ✎ For more information about Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific computer configuration. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 48
✎ For more information about Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific computer configuration. Mechanical Security Features Feature Purpose Memory Change Alerts Detects when memory modules have been added, moved - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 49
to access the utility. If you are using a PS/2 keyboard, you may see a Keyboard Error message-disregard it. 3. Select Security, then Power-On Password and follow the instructions on the screen. 4. Before exiting, click File > Save Changes and Exit. Service Reference Guide, dc7100 361288-003 3-17 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 50
is equipped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart the Computer. 2. To change the Power-On password, go to step 3. To change the Setup - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 51
is equipped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart the Computer. 2. To delete the Power-On password, go to step 3. To delete the Setup - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 52
computer. Refer to the Troubleshooting Guide on the Documentation CD for instructions specific hard drives. DriveLock has been implemented as an extension to Computer Setup. It is only available on certain systems and only when DriveLock-capable hard drives are detected. DriveLock is intended for HP - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 53
been designed to protect. Access to Computer Setup and DriveLock can be restricted through the Setup password. By specifying a Setup password and not giving it to end users, system administrators are able to restrict users from enabling DriveLock. Service Reference Guide, dc7100 361288-003 3-21 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 54
unlocked position. Ä CAUTION: For maximum cover lock security, be sure to establish a setup password. The setup password prevents unauthorized access to the Computer Setup utility. ✎ The Smart Cover Lock is available as an option on select systems. 3-22 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 55
■ Startup failure ■ PC component failure (such as processor or power supply) ■ Forgotten password Ä CAUTION: The Smart Cover FailSafe Key is a specialized tool available from HP. Be prepared; order this key before you need one (Tamper-resistant wrench PN 166527-001 or tamper-resistant bits PN 166527 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 56
is enabled, the BIOS prevents any changes being made to the MBR of the current bootable disk while in MS-DOS or Windows Safe Mode. ✎ Computer Setup, you must ■ Save the MBR of the current bootable disk; or ■ Disable the MBR Security feature. 3-24 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 57
so that the computer can be physically secured to a work area. For illustrated instructions, please see the Removal and Replacement Chapter for the specific chassis. 3.4.9 Fingerprint Identification Technology Eliminating the need to enter user passwords, HP Fingerprint Identification Technology - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 58
service provider can use this information to help diagnose conditions that caused you to run the DPS software. Refer to the Troubleshooting Guide for instructions on using DPS. 3.5.2 Surge-Tolerant Power Supply An integrated surge-tolerant power supply provides greater reliability when the computer - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 59
connectors on the system board are color coded to make identification easier. SATA Identification Primary channel, device 0 Primary channel, device 1 Secondary channel, device 0 Secondary channel, device 1 Color Dark blue Light Blue White Orange Service Reference Guide, dc7100 361288-003 4-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 60
V power P3 V3.3 3.3 V power P4 Ground P5 Ground P6 Ground P7 V5 5 V power P8 V5 5 V power Pin Usage Notes P9 V5 5 V power P10 Ground P11 Reserved P12 Ground P13 V 12 12 V power P14 V12 12 V power P15 V12 12 V power 4-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 61
Ground DIOW Ground DIOR Ground IORDY CSEL Pin Signal 29 DMAK 30 Ground 31 INTRQ 32 IOCS16 33 DA1 34 PDIAG (cable detect) 35 DA0 36 DA2 37 CS1FX 38 CS3FX 39 DASP 40 Ground Pin Usage 1 +12 V 2 Ground 3 Ground 4 +5 V Service Reference Guide, dc7100 361288-003 4-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 62
face ■ Device 0 connector = black face ■ Device 1 connector = gray face ✎ The color code of an industry-standard cable is applicable only if the drive's jumper is in the cable-select position instead of "Device 0" and "Drive 1" instead of "Device 1". 4-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 63
maximum four drives. HP does not support the use of PATA (IDE) hard drives when SATA hard drives are installed on the computer. Each drive by the device class of the drives and by specific attach sequence rules. 4.3.1 PATA Device Classes In order Service Reference Guide, dc7100 361288-003 4-5 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 64
on separate channels to maximize compatibility. ■ Keeping the hard drive and the writable optical drive on separate channels to maximize optical drive reliability. 4-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 65
Use the worksheet below for obtaining optimum system performance when setting up a computer with multiple drives. Use the General Attach Sequence Rule to determine the best the worksheet are: ■ Three-device installation ■ Four-device installation Service Reference Guide, dc7100 361288-003 4-7 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 66
-100 hard drive 1 1 Primary 0 DVD drive 2 2 Secondary 0 CD-ROM drive 3 3 Secondary 1 ✎ Cable lengths may restrict drive usage. 4 3 Primary Channel* Secondary Channel 1 2 4 1 3 2 Device 1 Device 0 4-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 67
0 ✎ Cable lengths may restrict drive usage. 4.3.4 PATA Additional Drive Application Notes ■ When replacing a hard drive, the replacement should be of the same type (Ultra ATA -33, -66, or -100) as the boot order is changed in Computer (F10) Setup. Service Reference Guide, dc7100 361288-003 4-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 68
(SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that Windows 2000/ XP Windows 2000/ XP Windows NT/2000/XP Windows NT/2000/XP Maximum Size Partition 32 GB 32 GB 2 TB 2 TB Drive 128 PB 2 TB 128 PB 2 TB 4-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 69
Drive Guidelines and Features 4.6 SATA BIOS Windows 2000 and XP Enhanced Mode (default BIOS Setting) -Separate IDE controller • add-in cards and is not supported by many legacy operating systems. Addresses are assigned by PCI Plug-n-Play BIOS and the Service Reference Guide, dc7100 361288-003 4-11 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 70
Drive Letter Ordering SATA Emulation* Separate IDE Controller (default). Used with Windows 2000 and XP. Hard Drive Order A. Integrated SATA B. Integrated IDE Separate IDE Controller Device 1 A1. IDE Device 0 A2. IDE Device 1 B1. SATA 0 B2. SATA 2 4-12 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 71
an AC power source voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. 5.1 Chassis Designations 5.1.1 Convertible Minitower (CMT) Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 72
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1.2 Small Form Factor (SFF) 5.1.3 Ultra-Slim Desktop (USDT) 5-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 73
the Chassis, Routine in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions parts in their containers until they arrive at static-free stations. ■ Place items on a grounded surface or conductive foam. Service Reference Guide, dc7100 361288-003 5-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 74
Identifying the Chassis, Routine Care, and Disassembly case or PCB laminate. Handle them only at static-free work areas. ■ Turn off power and input signals before inserting and removing connectors or test with hard tie to ground ■ Field service kits 5-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 75
of the desktop unit as this also restricts airflow. ■ Occasionally clean the air vents on all vented sides of the computer. Lint, dust computer when cleaning with liquids or damp cloths. 4. Always unplug the computer before cleaning the keyboard, mouse, or air vents. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 76
alcohol will evaporate quickly and not leave a residue. ■ After cleaning, always wipe the unit with a clean, lint-free cloth. ■ Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow. 5-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 77
Chassis debris from under the keys, review all rules in Section 5.4.1 keys. This tool is available through many electronic supply outlets. Ä CAUTION: Never remove a wide cleaning the mouse, ensure that the power to the computer is turned off. ■ Clean the Service Reference Guide, dc7100 361288-003 5-7 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 78
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.5 Service Considerations Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer. 5.5.1 Power Supply Fan The power supply fan is a variable-speed fan based on the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 79
Coin Cell Battery The battery that comes with the computer provides power to the real-time clock and has a lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures. Å WARNING - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 80
Identifying the Chassis, Routine Care, and Disassembly Preparation 5-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 81
each cable as you remove it, noting its position and routing. Keep all screws with the units removed. Ä CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application may damage the unit. Service Reference Guide, dc7100 361288-003 6-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 82
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.2 Unlocking the Smart Cover Lock If you have locked the Smart Cover Lock use Computer Setup to unlock the lock. Refer to the Desktop Management Guide on the Documentation Library CD for more information about the Smart Cover - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 83
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.3 Hood Sensor 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel (Section 6.5). 3. Disconnect the hood sensor cable from the system board. 4. Slide the hood sensor switch towards the front of the computer - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 84
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.4 External Security Devices 6.4.1 Cable Lock The cable lock may be used to secure the computer access panel to the chassis and, at the same time, secure the computer to a fixed object. 6-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 85
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.4.2 Padlock A padlock may be used by itself to secure the access panel to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object. I Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 86
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.5 Computer Access Panel 1. Prepare the computer for disassembly (Section 6.1). Ä CAUTION: Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 87
the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. Push up on the two release tabs 1, then rotate the front bezel away from the chassis to release it 2. To reinstall the front bezel, reverse the removal procedure Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 88
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.7 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1). To install a bezel blank, reverse the removal procedure. ✎ When replacing the subpanel, ensure that the aligning pins and any remaining bezel blanks - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 89
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.7.2 Diskette Drive Bezel or Bezel Blank Press up on the two small retaining clips 1 of the front bezel 3. To install a bezel or a bezel blank, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 6-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 90
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.8 Cable Management Always follow good cable management practices when working inside the computer. ■ Keep cables away from major heat sources like the heatsink. ■ Do not jam cables on top of expansion cards or memory modules. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 91
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.9 Memory CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 92
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure. ✎ If you normally lock the Smart Cover Lock, use Computer Setup to relock - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 93
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.10 Expansion Cards 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 6.2). 2. Prepare the computer for disassembly (Section 6.1). 3. Remove the computer access panel (Section 6.5). 4. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 94
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 7. If you are removing an expansion card from a standard expansion socket, hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket. Lift the expansion card straight up to - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 95
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 8. If you are removing a PCI Express card from a x16 PCI Express socket with a retention mechanism, pull the retention arm away from the socket then carefully rock the card back and forth until the connectors pull free from the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 96
Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor. 16. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide on the Documentation Library CD for instructions about using Computer Setup. 6-16 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 97
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.11 PCI Retainer Latch If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 6.2). 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 98
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6. Slide the pivoting bar to the right 1 then, lift the left end 2 to remove it from the chassis. To replace the bar, slide it into the socket on the right 1, lower it into position 3, and slide it to the left 4 to secure it in - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 99
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.12 Expansion Card Guide If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 6.2). 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 100
- Convertible Minitower (CMT) Chassis 6.13 Drives The computer supports up to six drives that may be installed in various configurations. This Section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 101
3. Remove the computer access panel (Section 6.5). 4. Remove the front bezel (Section 6.6). 5. Disconnect the power 1 and data 2 cables from the back of the drive. ✎ Some hard drives use a right angle connection on the SATA drive data cable 2. Service Reference Guide, dc7100 361288-003 6-21 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 102
on each side) from the old drive and install them in the replacement drive. ✎ Extra guide screws are provided on the chassis. Optical drives use M3 metric screws. The HP-supplied metric screws are black. The HP-supplied standard screws are silver. 6-22 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 103
- Convertible Minitower (CMT) Chassis 8. Store the removed drive in anti-static packaging. 9. Install the new drive by sliding it into the appropriate drive bay on the front of the chassis. The drivelock automatically secures the drive in the bay. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 104
cable. 6. If the computer is in the desktop mode, continue with step 7. If the computer is in the minitower mode, continue with step 8. 7. In the desktop mode, press down on the yellow drivelock mechanism 1 and slide the drive from the drive bay 2. 6-24 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 105
lower set of holes on the optical drive. ✎ Extra guide screws are provided on the chassis on the side of the fourth drive bay. Optical drives use M3 metric screws. The HP-supplied metric screws are black. The HP-supplied standard screws are silver. Service Reference Guide, dc7100 361288-003 6-25 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 106
Windows XP applications. 12. Connect the data and power cables on the to the drive. ✎ Refer to Chapter 4, "Serial and Parallel ATA Drive Guidelines and Features" for information on attaching the cabling to get optimum performance. 13. Replace the front bezel (Section 6.6). 14. Replace the computer - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 107
and power cables to the drive. 9. Replace the front bezel (Section 6.6). 10. Replace the computer access panel (Section 6.5) 11. If you normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor (Section 6.2). Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 108
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.14 Front I/O Device 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. Disconnect the two I/O device cables from the system board: the front USB cable pair and the front audio - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 109
out of the chassis 2. To install the power switch assembly, reverse the removal procedure. ✎ When installing the power switch cable it may be necessary to disconnect a data cabe from one of the drives to make it easier to grab the free end of the cable. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 110
slide the system board tray towards the front of the computer 2 to free it from the back of the chassis. To install the system board with its tray, press down on the board to ensure its latching 1 and then, push the board into its locked position 2. 6-30 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 111
water. ■ Replace the battery only with the HP/Compaq spare designated for this product. Ä CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Troubleshooting Guide for - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 112
Replace the computer cover or access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 6-32 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 113
the battery has been replaced, use the following steps to complete this procedure. 3. Replace the computer access panel. 4. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Service Reference Guide - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 114
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.18 Heatsink 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the computer and any damage to them may require replacing the system board. 6-34 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 115
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.19 Processor 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the computer access panel (Section 6.5, "Computer place it atop the processor. Service Reference Guide, dc7100 361288-003 6-35 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 116
installing a new processor onto the system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROMPaq can be found on the Web at: http:\\h18000.www1.hp.com/support/files. 6-36 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 117
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.20 Speaker 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. Disconnect the speaker wire from the system board. 4. Remove the four screws from the inside of the chassis - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 118
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.21 Chassis Fan 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. Disconnect the fan control cable from the system board. 4. Remove the four screws that secure the fan assembly - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 119
the system board. 3. Remove the four screws that connect the power supply to the chassis 1. 4. Slide the power supply toward the front of the computer, then lift it out of the computer 2. To install the power supply, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 6-39 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 120
Replacement Procedures - Convertible Minitower (CMT) Chassis 6.23 Changing from Desktop to Minitower 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock it. 2. Prepare the computer for disassembly (Section 6.1). 3. Remove the computer 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 121
Replacement Procedures - Convertible Minitower (CMT) Chassis 7. Before you reinstall each drive into the chassis two bays. The bottom bay supports a drive that is no more the drive. 9. Reconnect all power and data cables to the desktop configuration. Service Reference Guide, dc7100 361288-003 6-41 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 122
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 12. Reposition the subpanel (rotate it 90°) with the logo at the bottom, then snap it back into the bezel. 6-42 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 123
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.24 Changing from Minitower to Desktop 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock it. 2. Prepare the computer for disassembly (Section 6.1). 3. Remove the computer access panel (Section 6.5). 4. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 124
Replacement Procedures - Convertible Minitower (CMT) Chassis 7. Before reinstalling each drive into the chassis two bays. The bottom bay supports a drive that is no more the drive. 9. Reconnect all power and data cables to the desktop configuration. 6-44 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 125
, then snap it back into the bezel. 13. Replace the front bezel and computer access panel. 14. Reconnect the external equipment. 15. If you normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor. Service Reference Guide, dc7100 361288-003 6-45 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 126
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6-46 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 127
each cable as you remove it, noting its position and routing. Keep all screws with the units removed. Ä CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application may damage the unit. Service Reference Guide, dc7100 361288-003 7-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 128
■ Processor or power supply failure ■ Lost password 1. Using the Smart Cover FailSafe Key, remove the tamper-proof screw that secures the Smart Cover Lock to the inside of the chassis. 2. Remove the computer cover (Section 7.5, "Computer Cover"). 7-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 129
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis To reattach the Smart Cover Lock, position the lock with the tamper-proof screw. Service Reference Guide, dc7100 361288-003 7-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 130
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.3 Hood Sensor 1. Prepare the computer for disassembly. 2. Remove the computer cover. 3. Raise the power supply to its full upright position. 4. Disconnect the hood sensor cable from the system board. 5. Slide the hood sensor - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 131
installed before installing the computer cover. 7.4.2 Cable Lock The cable lock may be used to secure the computer cover to the chassis and, at the same time, secure the computer to a fixed object. Insert the cable lock in the location shown below. Service Reference Guide, dc7100 361288-003 7-5 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 132
computer cover to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object. I 7.4.4 Universal Chassis Clamp Lock Without Security Cable 1. Thread the keyboard and mouse cables through the lock. 7-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 133
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 2. Screw the lock to the chassis using the screw provided. Service Reference Guide, dc7100 361288-003 7-7 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 134
Procedures- Small Form Factor (SFF) Chassis 3. Insert the plug into the lock 1 and push the button in 2 to engage the lock. Use the key provided to disengage the lock. With Security Cable 1. Fasten the cable by looping it around a stationary object. 7-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 135
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 2. Thread the keyboard and mouse cables through the lock. 3. Screw the lock to the chassis using the screw provided. Service Reference Guide, dc7100 361288-003 7-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 136
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 4. Insert the plug end of the security cable into the lock 1 and push the button in 2 to engage the lock. Use the key provided to disengage the lock. 7-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 137
. 1. Press the buttons on the left and right sides of the computer 1. 2. Slide the computer cover towards the front of the computer until it stops 2 then, lift it up and off the chassis. To install the computer cover, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 7-11 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 138
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.6 Front Drive Bezels 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Remove the drive bezel by pushing the top tab on the right - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 139
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis There are three drive bezel inserts that are available. Item 1 2 3 Description Diskette drive bezel Hard drive bezel 3.5" drive bezel Service Reference Guide, dc7100 361288-003 7-13 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 140
tighter than a 30 mm (1.18 in) radius. ■ Never crease a SATA data cable. ■ Do not rely on components like the drive cage, power supply, or computer cover to push cables down into the chassis. Always position the cables to lay properly by themselves. 7-14 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 141
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis When removing the power supply power cables from the P1 or P3 connectors on the system board, cable. Pulling on the cable could damage the cable and result in a failed power supply. Service Reference Guide, dc7100 361288-003 7-15 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 142
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.8 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 143
recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure. ✎ If you normally lock the Smart Cover Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor. Service Reference Guide, dc7100 361288-003 7-17 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 144
and rotating the latch to the full open position 1. 7. Remove the single screw that keeps the card retainer in place 2 and slide the retainer to the left to remove it from the chassis 3. To install the card retainer, reverse the removal procedure. 7-18 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 145
the expansion card. 7. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the latch and rotating the latch to the full open position 1. 8. Remove the slot cover by sliding it up and out 2 of the computer. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 146
so that the whole connector seats properly in the expansion card slot. Ä CAUTION: All expansion card slots on the rear of the computer must contain either an expansion card or slot cover for proper cooling of internal components during operation. 7-20 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 147
latch back in place to secure the expansion cards and expansion slot. Ä CAUTION: All expansion card slots on the rear of the computer must contain either an expansion card or slot cover for proper cooling of internal components during operation. Service Reference Guide, dc7100 361288-003 7-21 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 148
external devices. 3. Disconnect the power cord from the power outlet and disconnect any external devices. 4. Remove the computer from the stand and lay the computer on its side. 5. Remove the computer cover. Refer to Section 7.5, "Computer Cover". 7-22 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 149
Procedures- Small Form Factor (SFF) Chassis 6. Remove the expansion card cage Section 7.10, "Horizontally Oriented Expansion Card". If you are installing a card for the first time in this computer, go to step 12. 7. If your are replacing an existing card, stand the card cage on its end for - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 150
with the guide rails on the backwall. Press down firmly on the cage to secure it in place on the backwall. Be sure the riser card in the cage is properly seated in the PCI expansion slot on the system board. Complete the reassembly of the computer. 7-24 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 151
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.10.3 Riser Card 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2, "Unlocking the Smart Cover Lock"). 2. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 152
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.11 Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä type and size of the storage device installed in the computer, run Computer Setup. 7-26 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 153
on the front of the chassis next to the drives 1. This disengages the drive cage. 5. Slide the drive cage forward until it stops 2. ✎ The unlock icon on the drive tray should align with the arrow on the chassis when the tray is fully extended. Service Reference Guide, dc7100 361288-003 7-27 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 154
Use only 3/16-inch or 5-mm long screws as guide screws. Longer screws can damage the internal components of the drive. ✎ When replacing the drive, transfer the four screws from the old drive to the new one. The screws take the place of drive rails. 7-28 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 155
remain connected to the system board. ✎ Diskette drive shown. 6. Slide the drive forward and lift it up and out of the drive cage. To replace the drive, transfer the four screws from the old drive to the new one and reverse the removal procedure. Service Reference Guide, dc7100 361288-003 7-29 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 156
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.11.4 Primary Hard Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2, "Unlocking the Smart Cover Lock"). 2. Prepare the computer for disassembly (Section 7.1, "Preparation for - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 157
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 5. Remove the security clip that secures the backwall to the power supply. 6. Rotate the power supply to its full upright position. Service Reference Guide, dc7100 361288-003 7-31 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 158
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7. Disconnect the power cable 1 and data cable 2 from the back of the hard drive. 8. Pull the tab that locks the drive in place away from the drive 1, slide the hard drive toward the front of the computer, then lift it up and out - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 159
applications that were preinstalled on the computer. Follow the instructions in the guide included with the Restore Plus! CD. When the restore process has completed, reinstall any personal files that you backed up before replacing the hard drive. Service Reference Guide, dc7100 361288-003 7-33 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 160
"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Lift up on the fan shroud to remove it from the computer. When replacing the shroud, make sure that it does not get caught on the wires from either the fan or the speaker. 7-34 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 161
flatten the cable in the cable retaining clip areas to make the cable more flexible. 6. Remove the power supply cable that is routed under the green leg of the drive cage 3. ✎ It may be necessary to flatten the cable to make the cable more flexible. Service Reference Guide, dc7100 361288-003 7-35 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 162
drive cage back into its locked position. Ä CAUTION: Make sure the flat ribbon cables are folded down and the SATA and power cables are pushed out of the way to prevent their being damaged when the drive cage is pushed into the locked position. 7-36 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 163
device towards the back of the chassis 2. 10. Pull the drive cage forward, grasp the I/O device and carefully pull it from under the drive cage 3. Guide the cable ends through the slots in the drive cage support device to keep them from snagging. Service Reference Guide, dc7100 361288-003 7-37 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 164
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis Follow these procedures for reinstalling the front I/O device. 1. Begin with the drive cage in its fully extended position. Guide the I/O device cables under the drive cage and through the legs of the drive cage support 1. It may be - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 165
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.14 Power Switch Assembly 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Disconnect the power switch/LED cable from the system - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 166
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.15 Heatsink 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Remove the fan shroud. Refer to Section 7.12, "Fan Shroud". 4. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 167
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.16 Processor 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Remove the fan shroud. Section 7.12, "Fan Shroud". 4. Disconnect - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 168
installing a new processor onto the system board, always update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROMPaq can be found on the Web at: http:\\h18000.www1.hp.com/support/files. 7-42 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 169
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.17 Speaker 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.5, "Computer Cover"). 3. Remove the fan shroud. Section 7.12, "Fan Shroud" 4. Remove the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 170
cage and from the clip on the side of the chassis in front of the hard drive (Section 7.12, "Fan Shroud"). 8. Disconnect the hood sensor from the system board and remove the sensor from the power supply if required (Section 7.3, "Hood Sensor"). 7-44 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 171
of the chassis. To install the power supply, reverse the removal procedure. Ä CAUTION: When installing the power supply cables, make sure they are properly positioned so they are not cut by the drive cage and are not pinched by the rotating power supply. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 172
(Section 7.9, "Vertically Oriented Expansion Card"). 4. Remove the fan shroud from the chassis (Section 7.11, "Drives"). 5. Slide the drive tray forward and disconnect the drive and power cables from the system board. 6. Remove the security clip. 7-46 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 173
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7. Rotate the power supply to its upright position. 8. Disconnect the serial port from the system board 9. Disconnect the balance of the cables from the system board. . Service Reference Guide, dc7100 361288-003 7-47 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 174
10. Remove the long mounting screw that secures the system board tray to the chassis. ✎ The heatsink has been removed from the drawing below for clarity. The heatsink should not be removed until the system board has been removed from the chassis. 7-48 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 175
the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the speaker spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the speaker spares kit. Service Reference Guide, dc7100 361288-003 7-49 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 176
"Fan Shroud"). 4. Disconnect the chassis fan cable from the system board. 5. Remove the four screws that secure the fan and fan guard to the chassis then, remove the fan from the chassis. . To install the chassis fan, reverse the removal procedure. 7-50 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 177
from the drive cage. The drive cage is moved only to gain working room. 6. Remove the power supply from the chassis (Section 7.18, "Power Supply"). 7. Disconnect all data and power cables from the system board except the cable to the heatsink. Service Reference Guide, dc7100 361288-003 7-51 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 178
fan shroud from the fan (Section 7.12, "Fan Shroud") 10. Remove the long mounting screw that secures the system board tray to the chassis. ✎ The heatsink has been removed from the drawing for clarity. Do not remove the heatsink for this operation. 7-52 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 179
lift the system board up and out of the computer. 12. Remove the three screws 1 that secure the backwall assembly to the chassis, then slide the backwall assembly 2 a few millimeters/inches toward the space vacated by the power supply and lift out. Service Reference Guide, dc7100 361288-003 7-53 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 180
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 13. Slide the new backwall 1 onto the rear chassis. Secure it with the three screws 2 system board is in position, replace the long screw to secure the system board to the chassis. 7-54 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 181
. Install the power supply. Rotate it to its normal operating position. Be sure to use proper cable handling and placement precautions. 18. If ready, install the PCI expansion card in the available slot in the new PCI riser card cage assembly. Consult the guide that comes with your computer model to - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 182
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 19. Install the new PCI riser card cage assembly on the new backwall by aligning the cage with the guide rails on the backwall. Press down firmly on the cage to secure it in place on the backwall. Be sure the riser card in the cage - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 183
Procedures- Small Form Factor (SFF) Chassis 21. Replace the fan shroud on top of the fan. 22. Replace the computer access panel. 23. Connect the power cord to the computer and electrical outlet. 24. Connect any peripheral equipment to the computer. Service Reference Guide, dc7100 361288-003 7-57 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 184
water. ■ Replace the battery only with the HP/Compaq spare designated for this product. Ä CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Troubleshooting Guide for - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 185
. 4. Replace the computer cover or access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 186
3. Replace the computer cover or access panel. 4. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 7-60 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 187
procedure. 3. Replace the computer cover or access panel. 4. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 188
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7-62 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 189
each cable as you remove it, noting its position and routing. Keep all screws with the units removed. Ä CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in an application may damage the unit. Service Reference Guide, dc7100 361288-003 8-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 190
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8. If the PC is mounted in the accessory mounting stand, remove it and lay the computer down on its rubber feet. 8-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 191
and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.2 External Security Devices 8.2.1 Installing a Cable Lock The cable lock may be used to secure the computer access panel to the chassis and, at the same time, secure the computer to a fixed object. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 192
Procedures - Ultra-Slim Desktop (USDT) Chassis 8.2.2 Installing a Padlock A padlock may be used by itself to secure the access panel to the computer chassis. A padlock may also be used with a security cable to secure the computer to a fixed object. I 8-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 193
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.3 Computer Access Panel 1. Prepare the computer for disassembly (Section 8.1). Ä CAUTION: Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 194
Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.4 MultiBay Device Ä CAUTION: The MultiBay device must be removed from the chassis before the front panel assembly is removed. Failure to remove the MultiBay device will result in severe damage to the computer Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 195
provides data and power to an installed MultiBay device: it locks the front panel assembly in the chassis; and it secures the power supply in the chassis and prevents its front-to-back movement. To reinstall the riser card, reverse the removal procedures. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 196
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.6 Front Panel Assembly 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device from the drive cage (Section 8.4). 4. Remove the MultiBay riser card - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 197
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.7 Front Bezel 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 198
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.8 Chassis Fan 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 199
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.9 Cable Management Always follow good cable management practices when working inside the computer. ■ Keep cables away from major heat sources like the heatsink. ■ Do not jam cables on top of expansion cards or memory modules. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 200
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.10 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 201
tab on the memory socket. 7. Repeat step 6 for any additional modules that you want to install. ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 8-13 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 202
(Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Lift the green bail handle on the expansion card cage and lift straight up. To install the cage, align the cage in the guides on the chassis and press it firmly into place. 8-14 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 203
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.12 Expansion Card 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove the expansion card cage (Section 8.11). 4. Open the latch 1 by squeezing the retainer fingers - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 204
secure the card in place. 9. Install the expansion card cage into the computer. 10. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide on the Documentation Library CD for instructions about using Computer Setup. 8-16 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 205
the computer access panel (Section 8.3). 3. Remove the expansion card cage (Section 8.11). 4. Disconnect the cable from the system board 1 and then slide the hood sensor out of the slot in the chassis 2. To install the hood sensor, reverse the removal procedures. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 206
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.14 Expansion Card Retaining Latch 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove the expansion card cage (Section 8.11). 4. Open the latch 1 by squeezing the - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 207
4. Remove the MultiBay riser card (Section 8.5). 5. Remove the front panel assembly (Section 8.6). 6. Disconnect the power and data cables from the hard drive. Follow proper cable management techniques when handling all cables. Refer to Section 8.9. Service Reference Guide, dc7100 361288-003 8-19 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 208
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 7. Pull the drive release lever away from the hard drive 1, then lift the cable-end of the drive 2 up and pull it towards the center of the chassis 3 to remove it from the drive cage. 8. Remove the four guide screws (two on each - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 209
and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.16 Front I/O Device 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 210
and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.17 Heatsink Assembly 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 211
Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.17.1 Heatsink Fan shroud, reverse the removal procedure. When reinstalling the heatsink in the computer, make sure that the top of the processor and the bottom replacing the system board. Service Reference Guide, dc7100 361288-003 8-23 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 212
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.18 Processor 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 213
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 4. update the system ROM to ensure that the latest version of the BIOS is being used on the computer. The latest system ROMPaq can be found on the Web at: http:\\h18000.www1.hp.com/support/files. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 214
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.19 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 215
the power supply to access the battery but do not either disconnect the cables or remove the assembly from the chassis (Section 8.19). 6. Depending on the type of battery holder on the system board, complete the following instructions to replace the battery: Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 216
position. 4. Replace the computer cover or access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup Guide. 8-28 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 217
battery. After the battery has been replaced, reverse the disassembly procedure 3. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup Guide. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 218
. 3. Replace the computer access panel. 4. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 8-30 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 219
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.21 Speaker 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove the expansion card cage (Section 8.11). 4. Disconnect the speaker cable from the system board. 5. - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 220
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.22 System Board 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 221
pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced. Keyboard Connector and Icon Unused Ethernet BNC Connector and Icon Pin 1 (Center) 2 (Shield) Signal Data Ground Service Reference Guide, dc7100 361288-003 A-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 222
AUI Differential Receive Pin Signal 9 Positive AUI Differential Receive 10 +12V 11 Ground 12 Ground 13 Unused 14 Unused 15 Unused 16 Unused A-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 223
to Send Clear to Send Ring Indicator (5V if powered) USB Connector and Icon Pin Signal 1 +5 VDC 2 - Data 3 + Data 4 Ground Microphone Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio Power Ground Service Reference Guide, dc7100 361288-003 A-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 224
23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_In_Left Audio_In_Right Ground Line-Out Audio Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield -RST Pin Signal 60 -MSG 61 -SEL 62 -C/D 63 -REQ 64 -I/O 65 -D 66 -D 67 -D 68 -D A-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 225
7 Ground 8 Ground 9 +5V (fused) 10 Ground Pin Signal 11 Not used 12 DDC Serial Data 13 Horizontal Sync 14 Vertical Sync 15 DDC Serial Clock Service Reference Guide, dc7100 361288-003 A-5 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 226
Pin Signal 29 DMAK 30 Ground 31 INTRQ 32 IOCS16 33 DA1 34 PDIAG (cable detect) 35 DA0 36 DA2 37 CS1FX 38 CS3FX 39 DASP 40 Ground MultiBay CD-ROM A_GROUND_R 62 FP15 46 A_GROUND_I 63 FP16 47 audio_r 64 FP17 48 FP01 65 FP18 49 FP02 66 FP19 50 FP03 51 FP04 67 FP20 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 227
11 GND 12 Fan-CMD 4-Pin Power (for CPU) Connector and Icon 1 Pin Signal 13 +12 V 14 +5 V Sense 15 GND 16 +5 V 17 +5 V 18 +3.3 V Pin Signal 1 GND 2 GND 3 +12 V CPU 4 -12 V CPU Pin Signal 19 GND 20 +3.3 Sense 21 +3.3 V 22 +3.3 V 23 GND 24 -12 V Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 228
Signal S1 Ground S5 B- S2 A+ S6 B+ P1 V 3.3 P5 Ground P9 V 5 P13 V 12 P2 V 3.3 P6 Ground P10 Ground P14 V 12 *S = Data, P = Power Pin Signal S3 AS7 Ground P3 V 3.3 P7 V 5 P11 Reserved P15 V 12 Pin Signal S4 Ground P4 Ground P8 V 5 P12 Ground A-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 229
54 GND 55 GND 56 PERp9 57 PERn9 58 GND 59 GND 60 PERp10 61 PERn10 62 GND 63 GND 64 PERp11 65 PERn11 76 PERp14 77 PERn14 78 GND 79 GND 80 PERp15 81 PERn15 82 GND Pin B information PERn7 49 GND 50 RSVD 71 GND 72 PERp13 73 PERn13 74 GND 75 GND Service Reference Guide, dc7100 361288-003 A-9 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 230
13 GND 14 PETp0 15 PETn0 36 GND 37 PETp5 38 PETn5 39 GND 40 GND 61 GND 62 PETp11 63 PETn11 64 GND 65 GND Pin Signal 16 GND 17 PRSNT2# 18 GND 19 PETp1 20 PETn1 41 PETp6 42 PRTn6 43 GND # 49 GND 50 PETp8 71 PETn13 72 GND 73 GND 74 PETp14 75 PETn14 A-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 231
in other countries must meet the requirements of the country where you use the computer. For more information on power cord set requirements, contact your authorized HP dealer, reseller, or service provider. General Requirements The requirements listed below are applicable to all countries: 1. The - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 232
requirements specific to Type HO5VV-F, 3-conductor, 1.0 mm2 conductor size. Power cord set fittings (appliance coupler and wall plug size. Wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration. B-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 233
Top of Memory setting in Computer Setup. Run Computer Setup (F10 Setup) and check configuration of Onboard Devices. Set the date and time under Control Panel or in F10 Setup depending on the operating system. If the problem persists, replace the RTC battery. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 234
conforming to the SPD standard. Rearrange the DIMMS so that each channel has the same amount of memory. If additional memory was recently added, remove it to see if the problem remains. Check product documentation for memory support information. C-2 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 235
front chassis fan. Replace chassis, rear chassis, or front chassis fan. Reseat CPU or chassis fan. Reseat fan cable. Replace CPU or chassis fan. Run Computer Setup (F10 Setup). Check and/or replace cables. Clear CMOS. Replace diskette drive. Replace the system board. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 236
tape drives). Clear CMOS. 912-Computer Cover Has Been Removed Since Last System Start Up No action required. 917-Front Audio not Detected Front audio harness has been not present (MultiBay diskette drives are not supported by the MultiBay option). C-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 237
and SATA 1. For three devices, use SATA 0, SATA1, and SATA 2. Upgrade BIOS to proper version. Change the processor. Run Computer Setup and save the MBR of the current bootable disk. Use extreme caution, The MBR may have been updated due to normal disk maintenance activities (disk manager, fdisk, or - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 238
number under Security, System ID, then save changes. Reconnect keyboard with computer turned off. Check connector for bent or missing pins. Ensure that none of the keys are depressed. Replace keyboard. Run Computer Setup and Diagnostic utilities. C-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 239
is taken. POST Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal Suspend mode. None - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 240
devices are functioning properly. Replace the power supply. Replace the system board. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory. Replace the system board. C-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 241
Replace the system board. For systems with integrated graphics, replace the system board. Replace the system board. Reflash the ROM using a ROMPaq diskette. See the "ROM Flash" section of the Desktop Management Guide on the Documentation CD. Replace the system board. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 242
board. Check to see if the 3V_aux light on the system board is turned on. If it is turned on, then replace the power button harness. If the 3V_aux light on the system board is not turned on, then replace the power supply. Replace the system board. C-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 243
If the system beeps, then the keyboard is operating correctly. ■ Check all cables for loose or incorrect connections. ■ Reconfigure the computer after installing a non-Plug and Play expansion board or other option, such as a diskette drive. ■ Are all of the necessary device drivers installed? ■ Have - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 244
the date and time under Control Panel. 2. Replace the RTC battery. Computer appears to pause periodically. Network driver is loaded and no network connection is established. Establish a network connection, or use Computer Setup or Microsoft Windows Device Manager to disable the network controller - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 245
fan spins. If not spinning, make sure the fan's cable is plugged onto the system board header. Ensure the fan is fully/properly seated or installed. 3. Replace the processor fan. 4. Reseat processor heatsink and verify that the fan assembly is properly attached. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 246
are properly connected to the system board. 4. If the 5 V_aux light on the system board is on, then replace the power button harness. 5. If the 5 V_aux light on the system board is off, then replace the power supply. 6. Replace the system board. D-4 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 247
. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Power failure (power supply is overloaded). Solution Select the proper AC voltage. Replace the power supply. 1. Ensure that the computer air vents are not blocked and the cooling fan is - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 248
security feature disabled settings. Replace the damaged disk. When formatting a disk in MS-DOS, you may need to specify diskette capacity. For example, to format a 1.44-MB diskette, type the following command at the MS-DOS prompt: FORMAT A: /F:1440 D-6 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 249
Media Boot function overrides the Boot Order enable command. Run Computer Setup and enable Removable Media Boot in Storage > Storage Options> Removable Media Boot. Run Computer Setup and disable Network Server Mode in Security > Password Options. Service Reference Guide, dc7100 361288-003 D-7 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 250
both drives are set correctly. Run Computer Setup and enable the Primary and Secondary IDE (ATA) controllers in Storage > Storage Options. Run Computer Setup and increase the POST Delay in Advanced > Power-On Options. Remove the media from the drive. D-8 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 251
. If FAT32 formatting, the hard drive cannot be accessed. Replace the MBR image. 3. If the hard drive is still inaccessible Computer Setup and select Storage > Boot Order and ensure the bootable hard drive's controller is listed immediately under the Hard Drive entry. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 252
Computer Setup. Solution Shut down Windows and turn off the computer. Insert the drive into the MultiBay, if it is not already inserted. Turn on the computer. Enter Computer Setup and set MultiBay to Device Available in Security > Device Security. D-10 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 253
right corner of the screen. 2. Using the keyboard arrow keys, select Enable VGA Mode and press Enter. 3. In Windows Control Panel, double-click the Display icon and select the Settings tab. 4. Use the sliding control to reset the resolution. Service Reference Guide, dc7100 361288-003 D-11 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 254
connected to the graphics card and the monitor. Blurry video or requested resolution cannot be set. If the graphics controller was upgraded, the correct video drivers may not be loaded. Install the video drivers included in the upgrade kit. D-12 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 255
display menu. 2. Manually synchronize the Clock and Clock Phase on-screen display functions. Download SoftPaq SP20930 or SP22333, depending on the monitor, to assist with the synchronization. 1. Reseat the graphics card. 2. Replace the graphics card. Service Reference Guide, dc7100 361288-003 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 256
support that particular symbol. Solution Use the Character Map to locate the and select the appropriate symbol. Click Start > All Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document. D-14 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 257
external speakers. 1. From the Control Panel program, click Sound, Speech and Audio Devices, then click Sounds and Audio Devices. 2. Click the Mute check box to remove the check mark from the box. Press the power button to resume from standby mode. Service Reference Guide, dc7100 361288-003 D-15 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 258
used by other open applications. The hard disk may be full. Shut down all open processor-intensive applications. 1. Before recording, make sure there is enough free space on the hard disk. 2. Try recording the audio file in a compressed format. D-16 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 259
. Reconnect all cables. Install the correct printer driver for the application. Reconnect all cables. Reset the printer by turning it off for one minute, then turn it back on. 1. Check the paper tray and refill it if it is empty. 2. Select online. Service Reference Guide, dc7100 361288-003 D-17 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 260
Replace the keyboard. Computer is in standby mode. Press the power button to resume from standby mode. Input is coming from a nearby wireless keyboard. 1. Ensure that the keyboard batteries are fresh. 2. Place the receiver over 30 cm (12 in) from a telephone, power supply, transformer, computer - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 261
mode. Input is coming from a nearby wireless mouse. 1. Ensure that the mouse batteries are fresh. 2. Place the receiver over 30 cm (12 in) from a telephone, power supply, transformer, computer, other electrical device, or power cords or cables. 3. The receiver should not be placed on or inside - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 262
came with the system to determine if you are using the correct memory modules and to verify the proper installation. 2. Observe the beeps and LED lights on the front of the computer. See Appendix C "POST Error Messages" to determine possible causes. D-20 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 263
module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Beeps continue for five iterations after which the LED flashes will continue until the problem is - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 264
. Ensure that the cable is attached to the correct connector. Ensure that the cable and device at the other end are operating correctly. Under the Computer Setup Advanced menu, change the resource settings for the board. Replace the NIC. D-22 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 265
boot sequence to boot from another source. Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC. Flash the ROM. Service Reference Guide, dc7100 361288-003 D-23 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 266
not need. Check the memory requirements for the application or add more memory to the computer. 1. Reseat DIMMs. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. D-24 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 267
to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heatsink is installed properly. 1. Check to see that the processor is present. 2. Reseat the processor. Service Reference Guide, dc7100 361288 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 268
Problems Problem Cause System will not boot from CD-ROM or DVD drive. Removable Media Boot is not enabled through the Computer Setup utility. Non-bootable CD in drive. Network Server Mode is enabled in Computer Setup. Boot order not correct. CD-ROM or DVD devices are not detected or driver - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 269
) Problem Cause Solution CD or DVD disc is dirty. Clean CD or DVD with a CD cleaning kit. Windows does not detect the CD-ROM or DVD-ROM drive. 1. Use Device Manager to remove or uninstall the device in question. 2. Restart the computer and let Windows detect the device. Recording audio CDs - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 270
The device is not working. 1. Replace the device. 2. Restart the computer. Solving Internet Access Problems Solving Internet Access Problems Problem Cause Unable to connect to the Internet. Internet Service Provider (ISP) account is not set up properly. Modem is not set up properly. Unable - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 271
, then click Properties. 7. Under Device status, verify that the modem is working properly. 8. Under Device usage, verify the modem is enabled. 9. If there are further problems, click the Troubleshoot button and follow the on-screen instructions. Service Reference Guide, dc7100 361288-003 D-29 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 272
should be performed. Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal Suspend mode. None - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 273
problem is resolved. 6 Pre-video graphics For systems with a graphics card: error. 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 274
each option card (PCI or PCI Express) by removing the card (one at a time if multiple cards), then power on the system to see if fault goes away. 2. Once a bad card is identified, remove and replace the bad option card. 3. Replace the system board. D-32 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 275
. 4. Check to see if the LED light on the system board is turned on. If it is turned on, then replace the power button harness. 5. If the LED light on the system board is not turned on, then replace the power supply. 6. Replace the system board. Service Reference Guide, dc7100 361288-003 D-33 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 276
D-34 361288-003 Service Reference Guide, dc7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 277
Port Parallel port over Serial Port and Video Port Parallel port over dual VGA ports DVI connector Keyboard connector, PS/2(Closest to power supply) Mouse connector, PS/2 Double-stacked mouse/keyboard connector, PS/2 Top = Mouse, Bottom = Keyboard Service Reference Guide, dc7100 361288-003 E-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 278
) Processor 12V header Secondary Processor 12V header Main Power/HDD LED connector Speaker connector Analog audio connector (from CD-ROM) Primary chassis fan connector Secondary chassis fan connector Diskette drive connector Auxiliary Audio connector Alert on LAN NIC connector VRM module footprint - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 279
port header White box chassis fan header Security hood switch on riser card Clear CMOS switch/push button Single chip solution (combined north bridge/south bridge) North bridge South bridge Super I/O Clock chip 64 bit Bridge LOM1 LOM1 EEPROM LOM1 PHY Audio Codec Audio amplifier LOM2 LOM2 EEPROM - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 280
(Continued) VRM controller USB front port power switch First USB rear port power switch Second USB rear port power switch Third USB rear port power switch Battery retainer Memory slot. DIMM1 or RIMM1 populated and tested Following memory slots Primary processor socket Secondary processor socket - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 281
will run at the highest supported memory speed. For example, if a 400 MHz DIMM is paired with a 533 MHz processor bus, the system will run at 400 MHz, the highest supported memory speed. ✎ The system will not start if you install unsupported DIMMs. Service Reference Guide, dC7100 361288-003 F-1 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 282
To identify the operating mode, run Computer Setup and select the System Information menu item. The operating memory mode will appear in the line showing the system total memory. ■ The system will operate , the system will operate in Interleaved mode. F-2 361288-003 Service Reference Guide, d7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 283
populated with a DIMM that is 333 MHz and a second DIMM that is 400 MHz, the system will run at the slower of the two speeds. Service Reference Guide, dC7100 361288-003 F-3 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 284
F-4 361288-003 Service Reference Guide, d7100 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 285
for Windows 2-16 cautions AC power 5-1 adding devices 1-1 batteries 5-9 cables 5-9 cooling fan 5-8 keyboard cleaning 5-7 keyboard keys 5-7 operating system installation 1-1 protecting ROM 3-4 chassis CMT illustrated 5-1 SFF illustrated 5-2 chassis fan CMT removal and replacement 6-38 SFF removal - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 286
minitower. See CMT country-specific power cord set requirements B-2 D date and time display D-2 device drivers installing/upgrading 1-1 Diagnostics for Windows categories 2-16 detecting 2-15 installing 2-15 Menu Bar 2-16 overview 2-14 running tests 2-17 disassembly preparation CMT 6-1 SFF 7-1 USDT - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 287
key CMT 6-2 SFF 7-2 fan shroud SFF removal and replacement 7-34 fan, power supply 5-8 FAT or FAT32 to NTFS conversion 1-2 file, Computer Setup heading 2-4 flashing LEDs C-7 front bezel CMT removal and replacement 6-7 USDT removal and replacement 8-8 front drive bezel SFF removal and replacement 7-12 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 288
power supply 6-39 CMT power switch assembly 6-29 CMT processor 6-35 CMT Smart Cover Lock 6-2 CMT speaker 6-37 CMT system board 6-30 SFF backwall 7-51 SFF battery 7-58 SFF cable lock 7-5 SFF chassis fan 7-50 SFF computer cover 7-11 SFF expansion card 7-19 Index-4 361288-003 Service Reference Guide - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 289
22 USDT heatsink fan and shroud 8-23 USDT memory 8-12 USDT padlock 8-4 USDT power supply 8-26 USDT processor 8-24 USDT speaker 8-31 USDT system board 8-32 required tools and software 5-8 riser card reference designators E-1 SFF removal and replacement 7-25 running tests,Diagnostics for Windows 2-17 - HP Dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 290
3-25 HP 1-1, 1-3 HPQFlash 3-5 PC Deployment 3-1 Remote ROM Flash 3-4 replicating setup, BIOS utility 3-8 ROM Flash 3-4 software downloads 2-15 support software 3-12 support software CD subscription 1-1 wrench, tamper-resistant 5-8 CMT 6-2 SFF 7-2 Index-6 361288-003 Service Reference Guide, dc7100
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Service Reference Guide
HP Compaq Business Desktop dc7100 Series
3rd Edition
Document Part Number: 361288-003
3rd Edition, November 2005
2nd Edition, October 2004
1st Edition, July 2004
This document provides information on the removal and replacement of all parts as well as
information on troubleshooting, Desktop Management, setup utilities, SATA and PATA drives,
safety, routine care, connector pin assignments, POST error messages, and diagnostic indicator
lights.