HP DC5100 HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi
HP DC5100 - Fast - Computer Desktop Pentium 4 HT 3.0Ghz 2gb 320gb DVDRW Keyboard/Mouse Included Manual
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- HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 1
Service Reference Guide HP Compaq Business Desktop dc5100 Series 1ST Edition Document Part Number: 376220-001 1st Edition, January 2005 This document provides information on the removal and replacement of all parts as well as information on troubleshooting, Desktop Management, setup utilities, SATA - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 2
of life. Ä CAUTION: Text set off in 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 dc5100 Series First Edition (January 2005) Document Part Number: 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 3
Diagnostics for Windows 2-17 2.4 Configuration Record 2-18 2.4.1 Installing Configuration Record 2-19 2.4.2 Running Configuration Record 2-19 3 Desktop Management 3.1 Initial Configuration and Deployment 3-1 3.2 Remote System Installation 3-2 3.3 Software Updating and Management 3-2 3.3.1 HP - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 4
Drive Capacities 4-10 4.6 SATA BIOS 4-11 4.6.1 Legacy Mode 4-11 4.6.2 Native Mode 4-11 4.7 Mixed Devices Boot and Drive Letter Ordering 4-12 5 Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1 Chassis Designations 5-1 5.1.1 Microtower (MT 5-1 5.1.2 Small Form Factor (SFF - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 5
Cleaning the Mouse 5-7 5.5 Service Considerations 5-7 5.5.1 Power Supply Fan 5-7 5.5.2 Tools and Software Requirements 5-7 5.5.3 Screws 5-8 5.5.4 Cables and Connectors 5-8 5.5.5 Hard Drives 5-8 5.5.6 Lithium Coin Cell Battery 5-9 6 Removal and Replacement Procedures- Microtower (MT) Chassis - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 6
- Small Form Factor (SFF) Chassis 7.1 Preparation for Disassembly 7-1 7.2 Unlocking the Smart Cover Lock 7-2 7.3 External Security Devices 7-4 7.3.1 Security Clip 7-4 7.3.2 Cable Lock 7-4 7.3.3 Padlock 7-5 7.3.4 Universal Chassis Clamp Lock 7-5 7.4 Computer Cover 7-10 7.5 Front Drive Bezels - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 7
Download drivers and software, enter the model number of the computer, and press Enter. You can also obtain the latest support software on CDs. The following Web site provides information on how to purchase a support software CD subscription: http://h18000.www1.hp.com/support/files/desktops/us - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 8
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 9
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, dc5100 376220-001 1-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 10
Installing the Operating System 1-4 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 11
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, dc5100 376220-001 2-1 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 12
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 13
Changes and Exit. ❏ To reset to factory settings, select Set Defaults 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, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 14
. 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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 15
mode is not compatible with the translation mode that was active when the disk was partitioned and formatted, the data on the disk will be inaccessible. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc5100 376220-001 2-5 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 16
primary IDE controller. This feature is supported on some models. Primary SATA Controller Allows you to enable or disable the Primary SATA controller. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 2-6 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 17
is set.) Allows you to specify whether the password is required for warm boot (CTRL+ALT+DEL). See the Desktop Management Guide for more information. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc5100 376220-001 2-7 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 18
Security device. • Reset the device to Factory Settings. This feature is supported on select models only. See the Desktop Management Guide on the Documentation CD for more information. Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some models - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 19
MultiBay drive that supports the DriveLock feature is attached to the system. See the Desktop Management Guide on the Documentation CD for more a virus. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Service Reference Guide, dc5100 376220-001 2-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 20
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 21
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, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 22
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 23
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, dc5100 376220-001 2-13 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 24
. 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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 25
Windows. ✎ If you want to upgrade an existing version of Diagnostics for Windows installed on the computer, visit http://www.hp.com/support/files and click on an applicable product. Locate the desired software and download the latest version. Execute the downloaded file and select Repair to update - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 26
-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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 27
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 28
Record utility is a windows-based information-gathering tool that gathers critical hardware and software information from various computer subsystems. The information includes such things as the ROM, asset tag, processor, physical drives, PCI devices, memory, graphics, operating system version - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 29
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, dc5100 376220 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 30
Setup Utilities and Diagnostics Features 2-20 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 31
installation ■ Software updating and management ■ ROM flash ■ Asset tracking and security ■ Fault notification and recovery ✎ Support for specific features described in this guide may vary by model or software version. 3.1 Initial Configuration and Deployment HP computers come with a preinstalled - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 32
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 33
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, dc5100 376220-001 3-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 34
updated or overwritten. This is important to ensure the operating integrity of the computer. Should you need or want to upgrade your ROM, you may: ■ Order an upgraded ROMPaq™ diskette from HP. ■ Download the latest ROMPaq images the HP driver and support page, http://www.hp.com/support - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 35
Desktop Management 3.3.8 HPQFlash The HPQFlash utility is used to locally update or restore the system ROM on individual PCs through a Windows operating system. For more information on HPQFlash, visit http://www.hp.com/support/files and enter the name of the computer when prompted. 3.3.9 FailSafe - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 36
for faster, more consistent configuration of multiple computers. ✎ Both procedures require a diskette drive or a supported USB flash media device, such as an HP Drive Key. Copying to Single Computer Ä CAUTION: A setup configuration is model-specific. File system corruption may result if source - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 37
Setup (F10) Utility lists the USB device before the hard drive, the computer can be booted from a USB flash media device. Otherwise, a bootable diskette must be used. 2. Select a setup configuration to copy. Turn off the computer. If you are in Windows, click Start > Shut Down > Shut Down. 3. If you - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 38
Business Desktop dx6100 series ❏ HP Compaq Business Desktop d530 Series - Ultra-Slim Desktop, Small Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS, future systems may also support - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 39
directory on another drive (for example, the system's internal hard drive). 10. At the A:\ prompt, enter FORMAT /S X: where X represents the drive letter noted before the computer. The computer will boot to the USB flash media device as drive C. Service Reference Guide, dc5100 376220-001 3-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 40
Business Desktop dx6100 series ❏ HP Compaq Business Desktop d530 Series-Ultra-Slim Desktop, Small Form Factor, or Convertible Minitower ❏ Compaq Evo D510 Ultra-Slim Desktop ❏ Compaq Evo D510 Convertible Minitower/Small Form Factor Depending on the individual BIOS, future systems may also support - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 41
the USB flash media device as drive C. ✎ The default boot order varies from computer to computer, and it can be changed in the Computer Setup (F10) Utility. Refer to the Computer Setup Guide on the Documentation CD for instructions. If you have used a DOS version from Windows 9x, you may see a brief - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 42
and installing the latest support software easier. You can download the software from http://www.hp.com/support. The Web site contains the latest device drivers, utilities, and flashable ROM images needed to run the latest Microsoft Windows operating system on the HP computer. 3.3.13 Building Blocks - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 43
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, dc5100 376220 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 44
• Reset the device to Factory Settings. This feature is supported on select models only. See HP ProtectTools Embedded Security Guide, on the Documentation CD for more information. Device Security Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 45
the BIOS during the next reboot, and an MBR Security warning message will be displayed. ✎ For more information about Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific computer configuration. Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 46
Change Alerts, refer to the online Desktop Management Guide on the Documentation CD. Install a cable lock to secure the computer to a fixed object. Install a lock in the security loop to prevent unwanted configuration changes or component removal. 3-16 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 47
to HP ProtectTools Embedded Security Guide, on the Documentation CD. Establishing a setup password through Computer Setup prevents reconfiguration of the computer (use of the Computer Setup (F10) utility) until the password is entered. 1. Turn on or restart the computer. If you are in Windows, click - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 48
the system 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 49
, 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 changed using the Security options in Computer Setup. Service Reference Guide, dc5100 376220-001 3-19 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 50
, you cannot access the computer. Refer to the Troubleshooting Guide on the Documentation CD for instructions on clearing passwords. If the system is equiped with an embedded security device, refer to HP ProtectTools Embedded Security Guide, on the Documentation CD. 3.4.4 DriveLock DriveLock is an - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 51
, 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 52
a software-controllable cover lock featured on select HP computers. This lock prevents unauthorized access to the internal components. Computers ship with Computer Setup utility. ✎ The Smart Cover Lock is available as an option on select systems. 3-22 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 53
Desktop Management Locking the Smart Cover Lock To activate and lock the Smart Cover Lock, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. 2. As soon as the computer Contact an authorized HP reseller or service provider. ■ - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 54
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 55
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, dc5100 376220-001 3-25 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 56
managed PCs and create a summary report of failed tests. 3.5.1 Drive Protection System The Drive Protection System (DPS) is a diagnostic tool built into the hard drives installed in select HP computers. DPS is designed to help diagnose problems that might result in unwarranted hard drive replacement - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 57
Guidelines and Features 4 Serial and Parallel ATA Drive Guidelines and Features ✎ 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 58
Cable The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive. As shown in the table, each cable has 3 grounds, and 4 transmit/receive pins. SATA data cables 12 V power P14 V12 12 V power P15 V12 12 V power 4-2 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 59
Serial and Parallel ATA Drive Guidelines and Features 4.2.3 PATA Data Cable Pin Signal Pin 1 Reset 15 2 Ground 16 3 DD7 17 4 DD8 18 5 DD6 19 6 DD9 20 39 DASP 40 Ground Pin Usage 1 +12 V 2 Ground 3 Ground 4 +5 V Service Reference Guide, dc5100 376220-001 4-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 60
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 61
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 62
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 63
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, dc5100 376220-001 4-7 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 64
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 65
-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, dc5100 376220-001 4-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 66
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 67
Serial and Parallel ATA Drive Guidelines and Features 4.6 SATA BIOS Windows 2000 and XP Enhanced Mode (default BIOS Setting) -Separate IDE controller • PATA Controller in Legacy Mode - Device 0 is accessible as Device 0 of PATA controller's Primary Channel - Device 1 is accessible as Device 1of - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 68
Controller (default). Used with 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 4-12 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 69
computer is plugged into 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 Microtower (MT) Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 70
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1.2 Small Form Factor (SFF) 5-2 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 71
for a while, but it has been degraded in the internal layers, reducing its life expectancy. Networks built into many integrated parts in their containers until they arrive at static-free stations. ■ Place items on a grounded surface conductive foam. Service Reference Guide, dc5100 376220-001 5-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 72
bare skin. The ground cord must be connected and fit snugly into the banana plug at standing workstations and are compatible with most types of shoes or boots. On them only at static-free work areas. ■ Turn hard tie to ground ■ Field service kits 5-4 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 73
the front of the desktop unit as this also restricts airflow. ■ Occasionally clean the air vents on all vented sides of the computer. computer when cleaning with liquids or damp cloths. 4. Always unplug the computer before cleaning the keyboard, mouse, or air vents. Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 74
dampened with clear water. ■ For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 75
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) ■ Torx T-15 screwdriver with small diameter shank (for certain front bezel removal) ■ Flat-bladed screwdriver (may sometimes - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 76
, refer to Section 5.2, "Electrostatic Discharge Information." ■ Do not use excessive force when inserting a drive. ■ Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields such as monitors or speakers. 5-8 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 77
chapter for the chassis you are working on in this guide for instructions on the replacement procedures. Å WARNING: This computer contains a lithium battery. There is a risk of fire not be disposed of together with the general household waste. Service Reference Guide, dc5100 376220-001 5-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 78
Identifying the Chassis, Routine Care, and Disassembly Preparation 5-10 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 79
chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. ✎ Not all features listed in this guide are available on all computers. 6.1 Preparation for Disassembly See Chapter - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 80
time, secure the computer to a fixed object. 6.2.2 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 6-2 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 81
1 inch (2.5 cm), then lift it off the unit. ✎ You may want to lay the computer on its side to install internal parts. Be sure the side with the access panel and pull grip is facing up. To install the access panel, reverse the removal procedure. Service Reference Guide, dc5100 376220-001 6-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 82
- Microtower (MT) Chassis 6.4 Front Bezel 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access panel (Section 6.3, "Access Panel"). 3. To remove the front bezel off the chassis from left to right. 6-4 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 83
Removal and Replacement Procedures- Microtower (MT) Chassis To reinstall the front bezel, 1. Position the chassis in the upright position. 2. Insert the two hooks on the right the upper right corner of the bezel snap into the slots on the chassis. Service Reference Guide, dc5100 376220-001 6-5 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 84
Replacement Procedures- Microtower (MT) Chassis 6.5 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access panel (Section 6.3, "Access Panel"). 3. Remove the front bezel (Section 6.4, "Front Bezel"). 6.5.1 5.25" Drive Bezel Blank - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 85
3.5" Drive Bezel Blank Press the two upper 1 or the two lower 2 tabs for the 3.5" drive bezel towards the center of the 3.5" drive bezel and push the bezel blank out to remove it from the front bezel. To install a bezel blank, reverse the removal procedure. Service Reference Guide, dc5100 376220 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 86
Microtower (MT) Chassis 6.6 Memory Modules Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory that you want to install. To reassemble the computer, reverse the removal procedure. 6-8 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 87
rear of the computer, remove the retaining screw 1 then, slide the slot cover lock up 2 to access the expansion slot covers. For instructions on standard PCI expansion cards, see Section 6.7.2, "PCI Expansion Card." or 6.7.3, "PCI Express Expansion Card." Service Reference Guide, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 88
during operation. 3. Store the old card in anti-static packaging that contained the new card. 4. If you are installing a PCI expansion card for the first time in this computer you will need to remove the correct expansion slot cover at this time. 6-10 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 89
2. ✎ Press firmly on the card so that the whole connector seats properly in the expansion card slot. 7. Slide the slot cover lock down toward the expansion card brackets and slot covers to secure them in place 1 and install the retaining screw 2. Service Reference Guide, dc5100 376220-001 6-11 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 90
Microtower (MT) 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 supply. 6-12 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 91
Procedures- Microtower (MT) Chassis 6.8.1 Cable Connections Cable Power Supply Power Supply Power Supply Power Supply Power Supply Power Supply Power Supply Cable Diskette drive 1st SATA Hard drive 2nd SATA Hard drive ODD Data ODD Audio 2nd ODD Audio Heatsink fan Secondary system fan Front power - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 92
- Microtower (MT) Chassis 6.9 Drives The computer supports up to six drives that may be installed in various configurations. This Section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 93
Panel"). 3. Remove the front bezel (Section 6.4, "Front Bezel"). 4. Disconnect the power and data cables from the back of the drive, as shown in the following illustrations. Disconnecting Optical Drive Cables Disconnecting Diskette Drive Cables Service Reference Guide, dc5100 376220-001 6-15 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 94
Removal and Replacement Procedures- Microtower (MT) Chassis Disconnecting Hard Drive Cables ✎ Some products use straight cable connectors while others use right angle connectors. Releasing the Drives 5. A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 95
Procedures- Microtower (MT) Chassis 6.9.3 Installing a Drive Ä CAUTION: To prevent loss of work and damage to the computer or drive: ■ If you are inserting or removing a hard drive, shut down the operating system properly, then turn off the computer. Do not remove a hard drive while the computer is - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 96
to the drive as shown in the following illustrations. ✎ Refer to Section 4.1, "SATA and PATA Device Information"for information on attaching the cabling to get optimum performance. Connecting Optical Drive Cables Connecting Diskette Drive Cables 6-18 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 97
applications that were preinstalled on the computer. Follow the instructions in the guide included with the restore CD. When the restore process has completed, reinstall any personal files that were backed up before replacing the hard drive. Service Reference Guide, dc5100 376220-001 6-19 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 98
the power cable that connects the chassis fan to the system board 1. 4. Remove the four screws from the rear of the chassis 2 that secure the fan. 5. Remove the fan from the chassis 3. To install the chassis fan, reverse the removal procedure. 6-20 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 99
switch/LED cable, the front USB cable, and the front audio cable. 4. Remove the two screws 1 that secure the housing to the chassis and then pull the housing 2 away from the chassis. To install the housing assembly, reverse the removal procedures. Service Reference Guide, dc5100 376220-001 6-21 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 100
Removal and Replacement Procedures- Microtower (MT) Chassis 6.12 Front I/O Devices 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on ( - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 101
point pen (or another thin, stiff object) to compress the clip leg while inserting it into the clip slot. 6. Reconnect the housing assembly to the front of the chassis and reconnect the cables to the system board. Service Reference Guide, dc5100 376220-001 6-23 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 102
Microtower (MT) Chassis 6.14 Heatsink 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access panel and rotate the computer Position the heatsink so that fan wiring is closest to the memory module and the power supply. Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 103
Microtower (MT) Chassis 6.15 Processor 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 6.3, "Access Panel"). 3. Disconnect the heatsink control 's solder connections. To Service Reference Guide, dc5100 376220-001 6-25 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 104
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. 6-26 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 105
Card"). 4. Disconnect all cables connected to the system board, noting their location for reinstallation. 5. Remove the 3-1/4" drives from the drive the front of the chassis 2 to remove it. To install the system board, reverse the removal procedures. Service Reference Guide, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 106
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 107
access panel (Section 6.3, "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, dc5100 376220-001 6-29 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 108
Procedures- Microtower (MT) Chassis 6.17.2 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 (F10) Utility Guide. 6-30 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 109
Replace the computer access panel (Section 6.3, "Access Panel"). 5. Plug in the computer and turn on power. 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, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 110
Removal and Replacement Procedures- Microtower (MT) Chassis 6.18 Speaker 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Section 6.3, " - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 111
and Replacement Procedures- Microtower (MT) Chassis 6.19 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into an system board. 4. Remove the screws that connect the power supply to the chassis 1. Service Reference Guide, dc5100 376220-001 6-33 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 112
- Microtower (MT) Chassis 5. Pull the power supply towards the front of the chassis while depressing the two sets of retaining clips 1 to allow the power supply to move far enough to lift it from the chassis 2. To install the power supply, reverse the removal procedure. 6-34 376220-001 Service - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 113
7 Removal and Replacement Procedures- Small Form Factor (SFF) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 114
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.2 Unlocking the Smart Cover Lock If you have locked the Smart Cover Lock use Computer Setup to unlock the lock. Refer to the Desktop Management Guide on the Documentation Library CD for more information about the Smart Cover - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 115
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, dc5100 376220-001 7-3 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 116
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.3 External Security Devices 7.3.1 Security Clip A special clip is required to secure the computer from intrusion. This clip must be installed before installing the computer cover. 7.3.2 Cable Lock The cable lock may be used to - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 117
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.3.3 Padlock A padlock may be used by itself to secure the 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 7.3.4 Universal Chassis Clamp Lock - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 118
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 2. Screw the lock to the chassis using the screw provided. 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. 7-6 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 119
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis With Security Cable 1. Fasten the cable by looping it around a stationary object. Service Reference Guide, dc5100 376220-001 7-7 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 120
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. 7-8 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 121
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. Service Reference Guide, dc5100 376220-001 7-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 122
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.4 Computer Cover 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). Ä CAUTION: Before removing the computer cover, ensure that the computer is turned off and that the power cord is disconnected - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 123
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.5 Front Drive Bezels 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove the drive bezel by pushing the top tab on the right - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 124
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 7-12 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 125
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.6 Cable Management The Slim Tower chassis is a very compact computer and proper routing of the internal cables is critical to the operation of the computer. Follow good cable management practices when working inside the computer. ■ Keep - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 126
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis When removing the power supply power cables from the P1 or P3 connectors on the system board, cable. Pulling on the cable could damage the cable and result in a failed power supply. 7-14 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 127
- Small Form Factor (SFF) Chassis 7.6.1 Cable Connections Cable Power Supply Power Supply Power Supply Power Supply Power Supply Power Supply Cable Diskette drive 1st SATA Hard drive ODD Data Heatsink fan Front LED/power button Front I/O USB Serial port connector Front I/O Audio System fan Speaker - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 128
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.7 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 129
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 6. Repeat steps 4 and 5 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. ✎ - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 130
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.8 Expansion Card 7.8.1 Expansion Card Retainer 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 131
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.8.2 PCI Expansion Card 1. If you have locked the Smart Cover Lock, restart the computer and enter Computer Setup to unlock the lock. 2. Turn off the computer properly through the operating system, then turn off any external - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 132
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 133
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9 Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 134
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.2 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 135
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. Pull on the cage until the internal - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 136
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.3 External 3.5-inch Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock. Refer to Section 7.2, "Unlocking the Smart Cover Lock". 2. Prepare the computer for disassembly. Refer to Section 7.1, - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 137
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.4 Primary Hard Drive 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock (Section 7.2, "Unlocking the Smart Cover Lock"). 2. Prepare the computer for disassembly (Section 7.1, "Preparation for - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 138
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. 7-26 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 139
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7. Disconnect the power cable 1 and data cable 2 from the back of the hard drive. 8. Pull the tab that locks the drive in place away from the drive 1, slide the hard drive toward the front of the computer, then lift it up and out - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 140
drivers, and any software applications that were preinstalled on the computer. Follow the instructions in the guide included with the Restore Plus! CD. When the restore process has completed, reinstall any personal files that you backed up before replacing the hard drive. 7-28 376220-001 Service - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 141
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.10 Fan Shroud 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Lift up on the fan shroud to remove it from the computer. When replacing - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 142
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.11 Front I/O Devices 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Disconnect the two I/O device cables from the system board - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 143
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7. Remove the SATA cable from the front and side retaining clips. 8. Push the empty 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 144
Replacement Procedures- Small Form Factor (SFF) Chassis 9. Remove the two screws that secure the front I/O device 1 then, push the I/O 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 145
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis Follow these procedures for reinstalling the front I/O device. 1. Begin with the drive cage in its fully extended position. Guide the I/O device cables under the drive cage and through the legs of the drive cage support 1. It may be - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 146
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.12 Power Switch Assembly 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Disconnect the power switch/LED cable from the system - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 147
- Small Form Factor (SFF) Chassis 7.13 Heatsink 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove the fan shroud. Refer to Section 7.10, "Fan Shroud". 4. Disconnect the fan control cable - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 148
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.14 Processor 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove the fan shroud. Section 7.10, "Fan Shroud". 4. Disconnect the - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 149
and Replacement Procedures- Small Form Factor (SFF) Chassis 3. If reusing 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, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 150
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.15 Speaker 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove the fan shroud. Section 7.10, "Fan Shroud" 4. Remove the - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 151
Small Form Factor (SFF) Chassis 7.16 Power Supply Å WARNING: Voltage is always present on the system board when the computer front of the chassis below the drive cage and from the clip on the side of the chassis in front of the hard drive (Section 7.10, "Fan Shroud"). Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 152
Replacement Procedures- Small Form Factor (SFF) Chassis 8. Lift the power supply up and out of the chassis. To install the power supply, reverse the removal procedure. Ä CAUTION: When installing the power supply cables, make sure they are properly positioned so they are not cut by the drive cage and - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 153
Small Form Factor (SFF) Chassis 7.17 System Board 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove all PCI and PCI Express expansion boards (Section 7.8, "Expansion Card"). 4. Remove the fan - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 154
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. . 7-42 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 155
- Small Form Factor (SFF) Chassis 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. Service Reference - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 156
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 11. Slide the system board tray assembly towards the front of the chassis, about 1/4 inch and lift the system the system board and the green handle is at the front of the board. 7-44 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 157
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 2. Install the processor. Ä CAUTION: Before reinstalling a previously used positioned so they do not interfere with the sliding of the drive cage or the rotation of the power supply. Service Reference Guide, dc5100 376220-001 7-45 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 158
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.18 Chassis Fan 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer cover (Section 7.4, "Computer Cover"). 3. Remove the fan shroud (Section 7.10, "Fan Shroud"). 4. Disconnect the - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 159
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 160
Procedures- Small Form Factor (SFF) Chassis 7.19.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer cover or - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 161
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.19.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 162
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.19.3 Type 3 Battery Holder 1. Pull back on the clip 1 that holds the battery in place, then remove the battery 2. 2. Insert the new battery and position the clip - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 163
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, dc5100 376220-001 A-1 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 164
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 165
Acknowledge 11 Busy 12 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, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 166
) 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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 167
7 Ground 8 Ground 9 +5V (fused) 10 Ground Pin Signal 11 Not used 12 DDC Serial Data 13 Horizontal Sync 14 Vertical Sync 15 DDC Serial Clock Service Reference Guide, dc5100 376220-001 A-5 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 168
ATA/ATAPI (IDE) Standard Drive Cable Connector Pin Signal 1 Reset 2 Ground 3 DD7 4 detect) 35 DA0 36 DA2 37 CS1FX 38 CS3FX 39 DASP 40 Ground MultiBay CD-ROM Adapter Connector Pin Signal 1 RESDRV_ 2 GROUND 3 D07 4 D08 5 D06 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 169
11 GND 12 Fan-CMD 4-Pin Power (for CPU) Connector and Icon 1 Pin Signal 13 +12 V 14 +5 V Sense 15 GND 16 +5 V 17 +5 V 18 +3.3 V Pin Signal 1 GND 2 GND 3 +12 V CPU 4 -12 V CPU Pin Signal 19 GND 20 +3.3 Sense 21 +3.3 V 22 +3.3 V 23 GND 24 -12 V Service Reference Guide, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 170
and Icon 4 6 Pin Signal 1 GND 2 GND 3 GND 4 12 V CPU 5 12 V CPU 6 +12 V SATA Data and Power Drive Connector Pin Signal Pin Signal S1 Ground S5 B- S2 A+ S6 B+ P1 V V 12 Pin Signal S4 Ground P4 Ground P8 V 5 P12 Ground A-8 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 171
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, dc5100 376220-001 A-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 172
25 GND 46 PETn7 47 GND 48 PRSNT2# 49 GND 50 PETp8 71 PETn13 72 GND 73 GND 74 PETp14 75 PETn14 A-10 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 173
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 mating with appliance inlet on the Switch Box. Service Reference Guide, dc5100 376220-001 B-1 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 174
Requirements Additional requirements specific to a country are shown in parentheses Type VCT or VCTF, 3-conductor, 1.0 mm2 conductor size. Wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration. B-2 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 175
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 option ROM is used for booting from - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 176
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 177
front chassis fan. Replace chassis, rear chassis, or front chassis fan. Reseat CPU or chassis fan. Reseat fan cable. Replace CPU or chassis fan. Run Computer Setup (F10 Setup). Check and/or replace cables. Clear CMOS. Replace diskette drive. Replace the system board. Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 178
slot using Intel 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 179
that the MBR change is unintentional and undesired (e.g. due to a virus), run Computer Setup and restore the previously saved MBR copy. Otherwise, run Computer Setup and either disable MBR security or save the MBR of the current bootable disk. Service Reference Guide, dc5100 376220-001 C-5 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 180
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 181
until corrective action is taken. POST Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 182
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 module. Replace third-party memory with HP memory. Replace the system board. C-8 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 183
board. For systems with integrated graphics, replace the system board. Replace the system board. Reflash the ROM using a ROMPaq diskette. See the "ROM Flash" section of the Desktop Management Guide on the Documentation CD. Replace the system board. Service Reference Guide, dc5100 376220-001 C-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 184
. Beeps 9 10 None Possible Cause System powers on but is unable to boot. Bad option card. hard drive LED does not turn on green then: Check that the unit is plugged into a working AC outlet. Open hood and check that the power button harness is properly connected Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 185
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, CD - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 186
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 187
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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 188
Solving Minor Problems (Continued) Problem Cause System does not power on and the LEDs on the 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 189
and the computer beeps two times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Processor thermal protection activated: A fan may be Replace the power supply. 5. Replace the system board. Service Reference Guide, dc5100 376220-001 D-5 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 190
supported on select models only.) Diskette is not formatted. Diskette is write-protected. Writing to the wrong drive. Not enough space is left on the diskette. Diskette write control is enabled. Cannot format diskette. Diskette is damaged. Invalid media reported. Solution In Microsoft Windows XP - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 191
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 Error-checking, click Check Now. Format the diskette. Check the type of drive that you are using - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 192
> Properties > Tools. Under Error-checking, click Check Now. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Check cable connections. 1. Run Computer Setup. 2. If the system still does not recognize the new - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 193
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, dc5100 376220-001 D-9 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 194
hard drive using an 80-conductor cable (standard on select models.) Connect slower UATA devices to a separate data cable connected to the secondary IDE (ATA) controller. Observe the beeps and LED lights on the front of the computer. See Appendix C "POST Error Messages". 1. Attempt the normal Windows - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 195
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, dc5100 376220-001 D-11 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 196
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 197
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, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 198
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 199
on the external speakers. Enable the audio in Computer Setup: Security > Device Security >Audio. See the sound card documentation for proper speaker connection. Connect audio cable between CD or DVD-ROM drive and the system board. Enable digital CD audio: 1. From the Control Panel, select System - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 200
any unsaved data will be lost. Noise or no sound comes out of the speakers or headphones. 1. The audio output jack supports both digital and analog output functions. When using digital speakers, switch the PC's output jack to digital mode. Go to the Volume Control Panel, select the Advanced button - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 201
. 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, dc5100 376220-001 D-17 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 202
Keyboard and Mouse Problems Solving Keyboard and Mouse Problems Problem Cause Solution Keyboard commands and typing are not recognized by the computer. Keyboard connector is not properly connected. 1. Turn off the computer. 2. Reconnect the keyboard to the back of the computer and restart the - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 203
. 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, dc5100 376220-001 D-19 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 204
came with the system to determine if you are using the correct memory modules and to verify the proper installation. 2. Observe the beeps and LED lights on the front of the computer. See Appendix C "POST Error Messages" to determine possible causes. D-20 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 205
and the computer beeps ten times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved Video card is not seated properly or is bad, or system board is bad. Bad option card. For systems with a graphics card: 1. Reseat the graphics card. Power on - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 206
network is detected. Network controller is not set up properly. Network driver is not properly loaded. System cannot autosense the network. Diagnostics reports a failure. The cable is not securely connected. The cable is attached to the incorrect connector. There is a problem with the cable or - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 207
network drivers are corrupted. The cable is not securely connected. New network card will not boot. Cannot connect to network server when attempting Remote System Installation. The network controller is defective. New network card may be defective or may not meet industry-standard specifications - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 208
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 209
to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heatsink is installed properly. 1. Check to see that the processor is present. 2. Reseat the processor. Service Reference Guide, dc5100 376220 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 210
Problems Problem Cause System will not boot from CD-ROM or DVD drive. Removable Media Boot is not enabled through the Computer Setup utility. Non-bootable CD in drive. Network Server Mode is enabled in Computer Setup. Boot order not correct. CD-ROM or DVD devices are not detected or driver - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 211
device in question. 2. Restart the computer and let Windows detect the device. Recording audio CDs is difficult or impossible. Wrong or poor quality media type. 1. Try using a slower recording speed. 2. Verify that you are using the correct media for the drive. 3. Try a different brand of media - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 212
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 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 213
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 Start > Control there are further problems, click the Troubleshoot button and follow the on-screen instructions. Service Reference Guide, dc5100 376220-001 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 214
order in which they should be performed. Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 215
LEDs continue until problem is resolved. 5 Pre-video memory 1. Reseat DIMMs. Power on the system. error. 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. Service Reference Guide, dc5100 376220-001 D-31 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 216
Flash" section of the Desktop Management Guide on the Documentation CD. 2. Replace the system board. Red Power LED flashes nine times, once every second, followed by a two second pause and the computer beeps nine times. Beeps stop after fifth iteration but LEDs continue until problem is resolved - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 217
Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes ten times, once every second, followed by a two second pause and the computer beeps ten times. Beeps stop after fifth iteration but LEDs continue until problem is - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 218
D-34 376220-001 Service Reference Guide, dc5100 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 219
Port Parallel port over Serial Port and Video Port Parallel port over dual VGA ports DVI connector Keyboard connector, PS/2(Closest to power supply) Mouse connector, PS/2 Double-stacked mouse/keyboard connector, PS/2 Top = Mouse, Bottom = Keyboard Service Reference Guide, dc5100 376220-001 E-1 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 220
front port choke (2nd) P/S connector (20 or 24 pin) Second P/S connector (as required) Processor 12V header Secondary Processor 12V header Main Power/HDD LED connector Speaker connector Analog audio connector (from CD-ROM) Primary chassis fan connector Secondary chassis fan connector Diskette drive - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 221
Graphics option connector Primary (CPU) fan header for fansink Secondary CPU fan header for fansink Security board connector, system board Secondary speaker header Hood lock header Hood sensor header Flying parallel port header White box chassis fan header Security hood switch on riser card Clear - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 222
XBT XMM1 XMM2 - XMM5 XU1 XU2 XU15/U15 Y1 Y2 Y3 Y4 Y5/H5 Component (Continued) VRM controller USB front port power switch First USB rear port power switch Second USB rear port power switch Third USB rear port power switch Battery retainer Memory slot. DIMM1 or RIMM1 populated and tested Following - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 223
Memory Intel-Based Systems Computers equipped with Intel-based processors come with double data rate 2 synchronous dynamic random access memory (DDR2-SDRAM) dual inline memory modules (DIMMs). The memory addition, the computer supports: 256Mbit, 512Mbit, and 1 Gbit non-ECC memory technologies single- - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 224
and XMM4. Sockets XMM1 and XMM2 operate in memory channel A. Sockets XMM3 and XMM4 operate in memory channel B. The system board shown may differ from system will operate in Interleaved mode. In any mode, the maximum operational speed is determined by the slowest DIMM in the system. For example, if - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 225
fan MT removal and replacement 6-20 SFF removal and replacement 7-46 chassis types, illustrated 5-1 cleaning computer 5-6 keyboard 5-6 monitor 5-7 mouse 5-7 clearing password 3-20 CMT chassis, illustrated 5-1 computer cleaning 5-6 computer cover SFF removal and replacement 7-10 computer pauses - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 226
7-25 hard drive cable MT connecting 6-19 MT disconnecting 6-16 headphone pin assignments A-4 heatsink MT removal and replacement 6-24 SFF removal and replacement 7-35 HP software. See software I infrared (IR) transceiver, external, pin assignments A-5 installing Diagnostics for Windows 2-15 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 227
pin assignments A-4 line-out audio pin assignments A-4 M memory MT removal and replacement 6-8 SFF removal and replacement 7-16 menu bar, Diagnostics for Windows 2-16 microphone pin assignments A-3 monitor blank screen D-12 blurry video D-14 checking connections D-1 cleaning 5-7 dim characters D-13 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 228
25 MT speaker 6-32 MT system board 6-27 SFF battery 7-47 SFF cable lock 7-4 SFF chassis fan 7-46 SFF computer cover 7-10 SFF expansion card 7-19 SFF expansion card retainer 7-18 SFF external 3.5-inch drive 7-24 SFF fan shroud 7-29 SFF front drive bezel 7-11 SFF front I/O devices 7-30 SFF hard drive - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 229
solutions 3-3 Diagnostics for Windows SoftPaq 2-15 Fingerprint Identification technology 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 - HP DC5100 | HP Compaq Business Desktop dc5100 Service Reference Guide, 2nd Editi - Page 230
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Service Reference Guide
HP Compaq Business Desktop dc5100 Series
1ST Edition
Document Part Number: 376220-001
1st Edition, January 2005
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.