Compaq dc7100 HP Compaq Business Desktop dc7100 Series Service Reference Guide
Compaq dc7100 - Convertible Minitower PC Manual
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- Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 4
a Setup Password Using Computer Setup 3-17 3.4.3 Establishing a Power-On Password Using Computer Setup 3-17 3.4.4 Convertible Minitower (CMT 5-1 5.1.2 Small Form Factor (SFF 5-2 5.1.3 Ultra-Slim Desktop (USDT Guidelines 5-5 5.4 Routine Care 5-5 iv 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 8
Contents viii 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 10
be installed at that time on selected models: ■ 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 12
Installing the Operating System 1-4 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 13
HP products. 2.1 Power-On Self-Test (POST) POST is a series of diagnostic tests that runs automatically when the system is turned on. POST checks the following items to ensure that the computer system is functioning properly: ■ Keyboard ■ Memory ." Service Reference Guide, dc7100 361288-003 2-1 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 17
only) Specifies the active data transfer mode. Options (subject to device capabilities) are PIO 0, Max PIO, Enhanced DMA, Ultra 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 19
Drive Protection System (DPS) self-tests. ✎ This selection will only appear when at least one drive capable of performing the DPS self-tests is attached to the system. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 27
from the following Web site: http://www.hp.com/support/files Once the software has been downloaded onto the hard drive it may be installed by performing these steps: 1. Close all Windows applications. 2. Install the Diagnostics for Windows utility: ❏ In Windows XP, select Start > Software Setup icon - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 29
temperature and 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 32
Setup Utilities and Diagnostics Features 2-20 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 33
■ 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 system software image. After a brief software - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 36
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/files. CAUTION: For maximum ROM protection, be - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 37
successfully reprograms the ROM, then the three keyboard lights will turn on. A rising tone series of beeps also signals successful completion. 5. Remove the diskette or CD and turn the power off. 6. Turn the power on again to restart the computer. Service Reference Guide, dc7100 361288-003 3-5 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 38
HP Drive Key. Copying to Single Computer 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. 1. Select - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 40
Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS, future systems may also support booting to a USB flash media device. Ä CAUTION: If you are using a computer other than one named - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 41
Enter for no label or enter one if desired. 12. Copy any files you saved in step 9 back to your USB flash media device. 13. Remove the diskette 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 42
and remove the PCI cards. 3. Insert the USB flash media device into one of the computer's USB ports and remove all other USB storage devices except USB diskette drives. Close the computer cover. 4. Plug in the power cord and turn on the computer. 3-10 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 43
if desired. 12. Turn off the computer and unplug the power cord. Open the computer and re-install any PCI cards that were previously removed. Close the computer cover. 13. Plug in the power cord, remove the diskette, and turn on the computer. 14. As soon as the computer is turned on, press and hold - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 47
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 361288-003 3-15 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 48
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, or removed; notifies user and - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 52
device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. 3.4.4 DriveLock DriveLock is an industry-standard security feature that prevents unauthorized access to the data on specific hard drives. DriveLock has been implemented as an extension to Computer Setup. It is - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 53
, system administrators may find themselves locked out of a hard drive and unable to perform routine checks for unauthorized software, other asset control functions, and support. For users with less stringent security requirements, HP does not recommend enabling DriveLock. Users in this category - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 55
open the computer cover. You will need the key in any of the following circumstances: ■ Power outage ■ Startup failure ■ PC component failure (such as processor or power supply any one of the following: ■ Contact an authorized HP reseller or service provider. ■ Call the appropriate number listed in - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 56
message is displayed: 2000-Master Boot Record Hard Drive has changed. Press any key to enter Setup to configure MBR Security. Upon entering 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 57
corporate networks. Affordably priced, it is not just for high-tech, high-security organizations anymore. ✎ Support for Fingerprint Identification Technology varies by model. For more information, visit http://h18004.www1.hp.com/products/security. Service Reference Guide, dc7100 361288-003 3-25 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 58
to the hard drive. Your 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 59
Serial ATA = SATA Parallel ATA = PATA HP does not support the use of PATA (IDE) hard drives when SATA hard drives are installed on the computer. 4.1 SATA and PATA Device Information Characteristic Number of pins/conductors in data cable Number of pins in power cable Maximum data cable length Data - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 61
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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 62
is always the farthest one from the system board connector and the Drive/Device 1 connector is always the closest to the system board connector. ✎ Some cables may be labeled "Drive 0" instead of "Device 0" and "Drive 1" instead of "Device 1". 4-4 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 63
and is not included as a part of the 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 attached to a channel must have a drive designation. If a drive is attached to the Device 0 cable position and its cable - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 64
until a fourth device is added. ■ Keeping the hard drives and removable media drives 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 65
determine the best drive installation sequence. Device Name Attach Sequence Worksheet Device Class Position Number Channel Name Device Number Two examples of how to use the worksheet are: ■ Three-device installation ■ Four-device installation Service Reference Guide, dc7100 361288-003 4-7 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 66
Name Device Number Ultra ATA-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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 67
-66, or -100) as that being removed to retain the same level of performance. ■ When Ultra ATA and SCSI hard drives are mixed in the same system, the Ultra ATA drive will become the boot drive unless the boot order is changed in Computer (F10) Setup. Service Reference Guide, dc7100 361288-003 4-9 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 68
Limits File System FAT 32 FAT 32 NTFS NTFS Controller Type ATA SCSI ATA SCSI Operating System 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 69
and Parallel ATA Drive Guidelines and Features 4.6 SATA BIOS Windows 2000 and XP Enhanced Mode (default BIOS Setting) -Separate 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 70
Windows 2000 and XP. Hard Drive Order A. Integrated SATA B. Integrated IDE Separate IDE Controller. Used A. Integrated IDE with Windows 2000 and XP. B. Integrated SATA Combined with IDE Controller. Used with Windows Device 1 B1. SATA 0 B2. SATA 2 4-12 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 73
removing them from their container. ■ Always be properly grounded when touching a sensitive component or assembly. ■ Avoid contact with pins, leads, or circuitry. ■ Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam. Service Reference Guide - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 74
assemblies by the case or PCB laminate. Handle them only at static-free work areas. ■ Turn off power and input signals before inserting and removing connectors or ■ Static-dissipative table or floor mats with hard tie to ground ■ Field service kits 5-4 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 75
cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3. Always unplug the 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 361288-003 5-5 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 77
mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly. ■ To clean the mouse body, follow the procedures in Section 5.4.2. Service Reference Guide, dc7100 361288-003 5-7 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 78
"Off" modes. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. 5.5.2 Tools and Software Requirements To service the computer, you need the following: ■ Torx T-15 screwdriver (Compaq screwdriver with bits, PN 161946-001 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 79
or snagged by parts being removed or replaced. Ä CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the computer. 5.5.5 Hard Drives Handle hard drives as delicate, precision components - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 80
Identifying the Chassis, Routine Care, and Disassembly Preparation 5-10 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 81
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 83
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 1 and - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 85
Removal 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 86
and that the power cord is disconnected from the electrical outlet. 2. Lift up on the access panel handle 1, slide the access panel back about 1 inch (2.5 cm), then lift it off the unit 2. To install the computer cover, reverse the removal procedure. 6-6 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 87
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.6 Front Bezel 1. Prepare 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 88
Convertible Minitower (CMT) Chassis 6.7 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the access panel (Section 6.5). 3. Remove the front bezel (Section 6.6). 6.7.1 5.25" Drive install a bezel blank, reverse the removal procedure. ✎ When replacing the subpanel, - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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. - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 92
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 the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 93
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. Locate - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 94
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 release - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 95
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 socket - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 96
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 11. Slide the bracket on the end of the expansion card down into the slot on the back of the chassis and press the card down firmly into the socket on the system board. ✎ When you install an expansion card, make sure you press - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 97
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. Locate - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 98
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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 99
- 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). 3. Remove any expansion cards that - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 101
(Section 6.1). 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 102
Procedures - Convertible Minitower (CMT) Chassis 6. Pull up on the green hard drive drivelock mechanism 1 for that drive and slide the drive from the drive bay 2. 7. Remove the four guide screws (two on each side) from the old drive and install them in the replacement drive. ✎ Extra guide screws - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 103
Procedures - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 105
and Replacement Procedures - Convertible Minitower (CMT) Chassis 8. In the minitower mode, pull up on the green drivelock mechanism 1 for that specific drive and slide the drive from the drive bay 2. 9. Remove the four guide screws (two on each side) from the old drive and install them in the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 106
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 10. Install the drive by sliding it into the appropriate drive bay on the front of the chassis. The drivelock automatically secures the drive in the bay. Ä CAUTION: Make sure the guide screws line up with the guide slots in the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 108
- 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 cable. 4. Remove the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 109
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 6-29 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 110
and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.16 System Board 1. Prepare the computer for disassembly (Section 6.1). 2. Remove the computer access panel (Section 6.5). 3. Remove all PCI expansion boards (Section 6.10). 4. Remove the x16 PCI Express graphics card (Section 6.10 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 111
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 information on backing - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 113
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6.17.2 Type 2 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, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 access panel (Section may require replacing the system board. 6-34 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 115
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 provided alcohol pad and place it atop the processor. Service Reference Guide, dc7100 361288-003 6-35 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 120
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 access panel (Section 6.5). 4. Remove the front - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 121
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 7. Before you reinstall each drive into the chassis, turn it so that it is in the same orientation as the internal 3.5-inch drive. The bottom of the drive should be parallel to the yellow drivelock. 8. Slide the drive into the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 123
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. Remove the front - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 124
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 7. Before reinstalling each drive into the chassis, turn the drive so that it is perpendicular to the internal 3.5-inch drive. The drive should be parallel to the green latch drive bracket. 8. Slide the drive into the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 125
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. 13. Replace the front bezel and computer access panel. 14. Reconnect the external equipment. 15. If you normally lock - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 126
Removal and Replacement Procedures - Convertible Minitower (CMT) Chassis 6-46 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 130
4. Disconnect the hood sensor cable from the system board. 5. Slide the hood sensor switch mounted on the power supply towards the outside of the computer 1 and lower it through the slot 2. To install the hood sensor, reverse the removal procedure. 7-4 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 138
side of the larger front bezel as shown 1 and rotating the drive bezel away from the larger front bezel 2. ✎ The drive bezel will vary depending on the computer configuration. 4. Install a bezel or a bezel blank by pushing the bezel into place. 7-12 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 141
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, the cable. Pulling on the cable could damage the cable and result in a failed power supply. Service Reference Guide, dc7100 361288-003 7-15 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 142
for Disassembly"). 3. Remove the computer cover (Section 7.5, "Computer Cover"). Å WARNING: To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching. 4. Open both latches of the memory module socket 1, and insert the memory module into the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 149
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 better leverage, and remove the card retaining screw 1. 8. Grasp the card and carefully rock it back and forth until the connectors pull free from the socket. Pull the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 151
Card Cage"). 5. Remove the two screws that secure the riser card to the expansion card cage 1, then remove the card 2. To install the riser card, reverse the removal procedure. ✎ The riser card is not spared separately at the time this document was released. Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 152
*A 3.5-inch diskette drive, hard drive, or Zip drive may be installed in this bay but the correct bezel must be installed to ensure proper air flow. To verify the type and size of the storage device installed in the computer, run Computer Setup. 7-26 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 153
Replacement Procedures- Small Form Factor (SFF) Chassis 7.11.2 Optical Drive Ä CAUTION: All removable media should be taken out of the drives before removing the drive from the computer. ✎ An optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD+R/RW, or CD-RW/DVD Combo drive. 1. If you have locked the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 154
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 6. Disconnect the power and data cables from the rear of the optical drive. 7. Slide the optical drive forward and lift it up and out of the drive cage. ✎ If the drive will not slide out of the cage, the cage is not fully extended. - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 156
the front of the chassis next to the optical drive 1 and slide the drive cage forward 2 to its fully extended position. This will give you access to the cable connectors on the primary hard drive. ✎ It is not necessary to remove the optical drive. 7-30 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 158
to use the cable that is exactly the same as the factory-installed cable. ✎ If the system has only one SATA hard drive, the data cable must be connected to the blue connector labeled P60 SATA 0 first to avoid any hard drive performance problems. 7-32 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 159
need a Torx T-15 screwdriver to remove and re-install the guide screws. HP has provided four extra 6-32 standard guide screws on the front of the chassis, under the computer cover. The 6-32 standard guide screws are silver. ✎ If you replaced the primary hard drive, insert the Restore Plus! CD to - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 165
chassis 2. Push the two LEDs out of the chassis 3. 5. If necessary, the LED holders may also be removed by squeezing the clips and pushing them out of the front of the chassis 4. To install the power switch and LEDs, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 7-39 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 166
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 may require replacing the system board. 7-40 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 167
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 go to step 3. If using a new heatsink, go to step 6. Service Reference Guide, dc7100 361288-003 7-41 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 169
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 7-43 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 171
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 7-45 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 175
the sliding of the drive cage the rotation of the power supply Complete the installation of 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 177
to remove any drives 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 180
SFF) Chassis 13. Slide the new backwall 1 onto the rear chassis. Secure it with the three screws 2 removed from the old backwall. 14. Install the serial connector 1 into the new backwall using the two screws 2 that were removed board to the chassis. 7-54 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 181
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 install a PCI expansion card. Service Reference Guide, dc7100 361288-003 7-55 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 183
Removal and Replacement 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, - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 184
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 information on backing - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 187
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 361288-003 7-61 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 188
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7-62 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 191
Removal 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, - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 193
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 electrical - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 194
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. 1. Prepare the computer for disassembly (Section 8.1). 2. Remove - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 196
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 (Section 8.5). 5. Lift - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 197
- 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 8.5). 5. Remove the front panel - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 198
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 8.5). 5. Remove Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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. - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 202
Ultra-Slim Desktop (USDT) Chassis 8.11 Expansion Card Cage 1. Prepare the computer for disassembly (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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 203
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 together - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 206
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 retainer - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 207
8.4). 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 208
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 side - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 209
riser card (Section 8.5). 5. Remove the front panel assembly (Section 8.6). 6. Remove the hard drive (Section 8.15). 7. Remove the two screws that hold the front I/O device in place 1. 8. Disconnect the audio cable from the back of the IO device 2 and pull that cable through the tunnel opening in - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 210
- 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 8.5). 5. Remove the front - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 211
Desktop (USDT) Chassis 8.17.1 Heatsink Fan with Shroud 1. Turn the heatsink assembly upside down and set it on a flat surface. 2. Spread the four snaps that are hooked around the base of the heatsink 1 and lift the heatsink from the shroud 2. To install a new shroud, reverse the removal procedure - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 212
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 8.5). 5. Remove Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 213
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. Service Reference Guide, dc7100 361288-003 8-25 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 214
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 8.5). 5. Remove the front panel assembly (Section 8.6). 6. Disconnect the power supply cable from the hard drive and the 6-pin power supply - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 217
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.20.2 Type 2 Battery 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 219
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 ( it. To install the speaker, reverse the removal procedure. Service Reference Guide, dc7100 361288-003 8-31 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 220
any MultiBay device in the drive cage (Section 8.4). 4. Remove the MultiBay riser card (Section 8.5). 5. Remove the front panel assembly (Section 8.6). 6. Remove the memory modules (Section 8.10). 7. Remove the heatsink (Section 8.17). 8. Remove the power supply (Section 8.19). 9. Disconnect all - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 221
for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced. Keyboard Connector +5 VDC 5 Clock 6 Unused Ethernet BNC Connector and Icon Pin 1 (Center) 2 (Shield) Signal Data Ground Service Reference Guide, dc7100 361288-003 A-1 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 222
RJ-45 Connector and Icon Pin 1 2 3 4 5 6 7 8 Ethernet AUI Connector and Icon Signal (+) Transmit Data (-) Transmit Data (+) Receive Data Unused Unused (-) Receive Data Unused +12V 11 Ground 12 Ground 13 Unused 14 Unused 15 Unused 16 Unused A-2 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 224
) 1 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) 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 225
Connector Pin Assignments Pin 1-11 12 13 14 15-25 26 27 28 Signal Ground Reserved Open Reserved Ground DB0 DB1 DB2 Pin Signal 29 DB3 30 DB4 31 DB5 32 DB6 33 used 12 DDC Serial Data 13 Horizontal Sync 14 Vertical Sync 15 DDC Serial Clock Service Reference Guide, dc7100 361288-003 A-5 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 226
Connector Pin Assignments ATA/ATAPI (IDE) Standard Drive Cable Connector Pin Signal 1 Reset 2 Ground 3 DD7 4 DD8 5 DD6 6 DD9 7 DD5 8 DD10 9 DD4 10 DD11 11 DD3 FP01 65 FP18 49 FP02 66 FP19 50 FP03 51 FP04 67 FP20 68 FP21 A-6 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 227
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 A-7 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 229
GND 24 GND 25 PERp2 46 GND 47 PERp7 48 PERn7 49 GND 50 RSVD 71 GND 72 PERp13 73 PERn13 74 GND 75 GND Service Reference Guide, dc7100 361288-003 A-9 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 230
25 GND 46 PETn7 47 GND 48 PRSNT2# 49 GND 50 PETp8 71 PETn13 72 GND 73 GND 74 PETp14 75 PETn14 A-10 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 232
Requirements Additional requirements specific to a country are shown in parentheses must be Type HO5VV-F, 3-conductor, 1.0 mm2 conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the (7A, 125V) configuration. B-2 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 233
board. If a PCI expansion card was recently added, remove it to see if the problem remains. In Computer Setup, disable the NIC PXE Option ROM Download to prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card's option ROM. Internal PXE - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 235
with computer turned off. Ensure that none of the keys are depressed. Replace keyboard. Replace system board. Reseat the graphics card ( Run Computer Setup (F10 Setup). Check and/or replace cables. Clear CMOS. Replace diskette drive. Replace the system board. Service Reference Guide, dc7100 361288 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 236
9X1 Express chipsets. This slot supports x1 and x16 (PCI Express Link Width cards) only. If a x4 or x8 card is used, system BIOS will attempt to retrain to a x1. If this fails, the 921 error message will be displayed. 1720-SMART Hard Drive Detect Imminent Failure Hard drive is about to fail. (Some - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 237
MultiBay riser is properly seated. If using Windows 2000 or Windows XP, change "SATA Emulation" to "Separate IDE Controller" in Computer Setup. If not using Windows 2000 or Windows XP, relocate the affected devices to SATA 0 or SATA 2 (if available). Remove the affected devices from SATA 1 and SATA - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 238
Probable Cause The current bootable hard drive is not the same as the one that was present when MBR security was enabled. Electronic serial number has become corrupted. Keyboard failure while Network Server Mode enabled. Parity RAM failure. Recommended Action Run Computer Setup and either disable - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 239
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 attached. Contact an authorized reseller or service provider. Service Reference Guide, dc7100 361288-003 C-7 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 240
is present. Reseat the processor. Open the hood and ensure the power supply cable is seated into the connector on the system board. Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards). Power on the system. If the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 241
until the issue has been resolved. Beeps 6 7 8 Possible Cause Pre-video graphics error. System board failure (ROM detected failure prior to video). Invalid ROM based on bad checksum. Recommended Action For systems with a graphics card: Reseat the graphics card. Power on the system. Replace the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 242
fault goes away. Once a bad card is identified, remove and replace the bad option card. Replace the system board. Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: Check that the voltage selector, located on the rear of the power supply, is set to the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 243
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 all printer drivers been installed for each application? ■ Remove all bootable media (diskette - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 244
when needed). 3. Ensure the processor heatsink is installed properly. Hard drive is full. Transfer data from the hard drive to create more space on the hard drive. Low on memory. Add more memory. Hard drive fragmented. Defragment hard drive. D-2 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 245
Solving Minor Problems (Continued) Problem Poor performance is experienced. (continued) Cause Program previously accessed did not release reserved memory back to the system Virus resident of the hard drive. Too many applications running. Computer powered off automatically and the Power LED - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 246
front of the computer are not flashing. System unable to power on. Possible Solution Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: 1. Check that the voltage selector is set to the appropriate voltage. 2. Remove the expansion cards one at a time - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 247
the computer beeps four times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Power failure (power supply is functioning properly. 4. Replace the power supply. 5. Replace the system board. Service Reference Guide, dc7100 361288-003 D-5 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 248
Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Remove diskette and reinsert. Push in drive button. Check the program diskettes. Reconnect power A: /F:1440 D-6 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 249
. Network server mode is enabled in Computer Setup. Solution Use another diskette or remove the write protection. Use Computer Setup to check the storage security feature disabled settings. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 251
as Primary Device 0. If attempting to boot from a SATA hard drive, ensure it is attached to SATA 0. Enter 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 361288-003 D-9 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 252
seconds to turn off the power. 3. Restart the computer using the power button. Solving MultiBay Problems Solving MultiBay Problems Problem Cause Drive not found. You attempted to hot plug a removable hard drive that has DriveLock security enabled. (This feature supported on select models only - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 260
Program in use has stopped responding to commands. Shut down the computer using the keyboard and then restart the computer. Mouse may need cleaning. Remove the roller ball cover on the mouse and clean it. Mouse needs repairs. Replace the mouse. D-18 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 261
. Otherwise, the computer will shut down and you will lose any unsaved data. Mouse will only move vertically or horizontally, or movement is jerky. Mouse roller ball is dirty. Remove roller ball cover from the bottom of the mouse and clean it. Service Reference Guide, dc7100 361288-003 D-19 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 262
Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional diskette drive. If you install a plug and play device, Windows 2000 and Windows XP automatically recognize the device and configure the computer. If you install a - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 263
the system board. 1. Check each option card by removing the cards one at time (if multiple cards), then power on the system to see if fault goes away. 2. Once bad card is identified, remove and replace bad option card. 3. Replace the system board. Service Reference Guide, dc7100 361288-003 D-21 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 264
Solving Network Problems Problem Cause Wake-on-LAN feature is not functioning. Wake-on-LAN is not enabled. Network driver does not 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 267
Solving Processor Problems . Solving Processor Problems Problem Cause Poor performance is experienced. Processor is hot. Power LED flashes Red three times, once every second, followed by a two second pause, and the computer beeps three times. Beeps continue for five iterations after which the - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 270
modem will be on.) Connect the CAT5 10/100 cable between the cable modem and the computers's RJ-45 connector. (If the connection is good, the "PC" LED light on the front of the cable/DSL modem will be on.) Contact the ISP for the correct IP address. D-28 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 271
long to download Web sites. Modem is not set up properly.s Verify that the correct modem speed and COM port are selected. For Windows XP 1. Select there are further problems, click the Troubleshoot button and follow the on-screen instructions. Service Reference Guide, dc7100 361288-003 D-29 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 272
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 attached. 5. Contact an authorized reseller or service provider. D-30 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 273
failure (power supply is overloaded). 1. Open the hood and ensure the 4-wire power supply cable is seated into the connector on the system board. 2. Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards). Power on - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 275
button for less than 4 seconds. If the hard drive LED turns green, then: 1. Check that the voltage selector, located on the rear of the power supply, is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Remove the expansion cards one at a time until the LED light on - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 276
D-34 361288-003 Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 277
Health-LED UID LED Power LED Hard drive activity LED Boot 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 278
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 AUI connector - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 279
Blade PC graphics connector (outboard) Blade PC graphics switch on riser card Clear CMOS switch Audio Codec Audio amplifier LOM2 LOM2 EEPROM LOM2 PHY Fan controller TMDS controller Parallel port diode array First serial port transceiver Second serial port transceiver Service Reference Guide, dc7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 280
Following memory slots Primary processor socket Secondary processor socket ROM socket (XU15) Primary (TH) system clock crystal Secondary (SMT) system clock crystal Primary NIC clock crystal Secondary NIC clock crystal RTC clock crystal/tie-down E-4 361288-003 Service Reference Guide, dc71000 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 284
F-4 361288-003 Service Reference Guide, d7100 - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 285
10 chassis fan removal and replacement 6-38 chassis, illustrated 5-1 desktop to minitower conversion 6-40 disassembly preparation 6-1 diskette drive bezel removal and replacement 6-9 diskette drive removal and replacement 6-27 drive positions 6-20 Service Reference Guide, dc7100 361288-003 Index - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 286
hard drive removal and replacement 6-21 heatsink removal and replacement 6-34 hood sensor removal and replacement 6-3 memory removal and replacement 6-11 minitower to desktop conversion 6-43 optical drive removal and replacement 6-24 padlock removal and replacement 6-5 PCI Express card removal and - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 287
assignments A-1 L LEDs blinking power C-7 blinking PS/2 keyboard C-7 line-in audio pin assignments A-4 line-out audio pin assignments A-4 M memory CMT removal and replacement 6-11 SFF removal and replacement 7-16 USDT removal and replacement 8-12 menu bar, Diagnostics for Windows 2-16 microphone pin - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 288
specific B-2 general B-1 power supply CMT removal and replacement 6-39 fan 5-8 SFF removal and replacement 7-44 USDT removal and replacement 8-26 power switch assembly CMT removal and replacement 6-29 SFF removal and replacement 7-39 power-on password 2-1 Power-On Self-Test (POST) 2-1 problems - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - Page 289
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 S safety precautions - Compaq dc7100 | HP Compaq Business Desktop dc7100 Series Service Reference Guide - 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
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.