Compaq d538 HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi
Compaq d538 - Convertible Minitower Desktop PC Manual
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- Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 1
service reference guide Business Desktop d500 Series 5th Edition 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 2
- Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 3
Service Reference Guide Business Desktop d500 Series 5th Edition Document Part Number: 336492-005 March 2004 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 4
HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP equipment or loss of information. Service Reference Guide Business Desktop d500 Series First Edition (May - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 5
Drivers 1-1 1.0.2 Creating an Emergency Repair Diskette - Windows 2000 1-1 1.0.3 Using the Emergency Repair Diskette - Windows 2000 1-1 1.1 Converting 2-18 2.6 Protecting the Software 2-18 2.7 Restoring the Software 2-19 3 Desktop Management 3.1 Initial Configuration and Deployment 3-1 3.2 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 6
Partition or Format the Current Bootable Disk 3-19 3.5.8 Cable Lock Provision 3- Convertible Minitower (CMT 5-1 5.1.2 Small Form Factor (SFF 5-2 5.1.3 Ultra-Slim Desktop (USDT 5-2 5.2 Electrostatic Discharge Information 5-3 5.2.1 Generating Static 5-3 iv 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 7
Service Considerations 5-7 5.4.1 Power Supply Fan 5-7 5.4.2 Tools and Software Requirements 5-7 5.4.3 Screws 5-7 5.4.4 Cables and Connectors 5-8 5.4.5 Hard Drives 5-8 5.4.6 Lithium Coin Cell Battery 5-8 6 Removal and Replacement Procedures- Convertible Minitower (CMT 6-8 6.8 Memory 6-8 6.9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 8
6.17Speaker 6-33 6.18Chassis Fan 6-34 6.19Power Supply 6-35 6.20Changing from Desktop to Minitower 6-36 6.21Changing from Minitower to Desktop 6-39 7 Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.1 Preparation for Disassembly 7-1 7.2 Unlocking the Smart Cover Lock - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 9
23 8.17Speaker 8-24 8.18Chassis Fan 8-25 8.19System Board 8-26 A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E System Board and Riser Board Reference Designators F Memory Index Service Reference Guide, d500 336492-005 vii - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 10
Contents viii 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 11
drivers for the devices. The I386 directory and its subdirectories provide the HP- or Compaq-specific integration of the operating system for the computer model and include device drivers supported an Emergency Disk. 3. Follow the instructions that appear Service Reference Guide, d500 336492-005 1-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 12
files, in English and selected other languages, in one of three ways: ■ Support Software CD ■ HP web site at www.hp.com ■ Compaq Restore Plus! CD, which is supplied with many Compaq models ✎ Additional HP software may be required in certain situations. 1-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 13
computer system when contacting Customer Support. These tools can also be this chapter may not be available on all HP products. 2.1 Power-On Self-Test ( computer system is functioning properly: ■ Keyboard ■ Memory modules ■ Diskette drives ■ All IDE and Service Reference Guide, d500 336492-005 2-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 14
system configuration information on diskette and restoring it on one or more computers. ■ Execute self-tests on a specified IDE (ATA) hard drive (when supported by the drive). ■ Enable or disable DriveLock security (when supported by MultiBay drive). 2-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 15
Changes and Exit. ❏ To reset to factory settings, select Set Defaults and Exit. This option will restore the original factory system defaults. Ä CAUTION: Do NOT turn the computer power OFF while the ROM the computer after you exit the F10 Setup screen. Service Reference Guide, d500 336492-005 2-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 16
Diskette Restore from version, installed memory size, Restore for DiskOnKey is supported. Restores system configuration from a diskette. Save/Restore for DiskOnKey is supported. Restores be made bootable by selecting disk emulation.) Drive Type Emulation Options disk None (treated as Other) Disk - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 17
mode is set to User. Multisector Transfers (IDE disks only) Specifies how many sectors are transferred per Manually, turn the computer off, then on. Primary IDE Controller * Allows you to enable or disable the primary IDE/ATA controller. *Option supported on select models. Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 18
disk I/O requests are serviced. When "Enable" is selected, the BIOS will service all disk I/O requests with DMA data transfers. When "Disable" is selected, the BIOS will service all disk if any devices are attached). *Option supported on select models. 2-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 19
you to set and enable power-on password. See the Troubleshooting Guide for more information. Password Options (This selection will appear is supported on select models only. See the Desktop Management Guide for more information. *Option supported on select models. Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 20
has modified the MBR may cause the data on the disk to become inaccessible. Only restore a previously saved MBR ifyou are confident that the current bootable disk's MBR has been corrupted or infected with a virus. *Option supported on select models. 2-8 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 21
Service Boot System IDs Description Enables/disables serial ports A and B, parallel port, front USB ports, all USB ports, system audio POST). See Chapter 3, "Desktop Management," in this Guide. • Chassis serial number or supported on select models. Service Reference Guide, d500 336492-005 2-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 22
screen. F12 prompt (enable/disable). Enabling this feature will display the text F12=Network Service Boot during POST. Disabling this feature prevents the text from being displayed but pressing F12 These options should be used by advanced users only. 2-10 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 23
to the POST process. This delay is sometimes needed for hard disks on some PCI cards that spin up very slowly; so This is typically used to download a corporate image to a hard drive. The NIC option ROM takes up memory space below 1MB commonly referred Service Reference Guide, d500 336492-005 2-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 24
PCI SERR# generation. ECC support allows hardware-based error correction for ECC-capable memories. Device options Allows you to on a boot from the S3 state. ACPI S3 Hard Disk Reset* (enable/disable). Resets the hard disk on a boot from the S3 sleep state. ACPI S3 005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 25
you can download the Diagnostics for Windows SoftPaq from the following Web site: http://www.hp.com/support/files Once the software has been downloaded onto the Select Diagnostics for Windows > Next button, then follow the instructions on the screen. Service Reference Guide, d500 336492-005 2-13 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 26
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 the installed version. This will cause - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 27
Graphics ❏ Memory-System board and Windows memory ❏ Multimedia-Optical storage (CD, DVD, and so on) and audio ❏ Windows-Windows ❏ Architecture-PCI Device ❏ Resources-IRQ, I/O, and Memory Map ❏ and the error code. ■ Help-Contents, How to use Help, About Service Reference Guide, d500 336492-005 2-15 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 28
Running Diagnostic Tests in Diagnostics for Windows To run diagnostic tests: 1. Click Start > HP Information Center > Diagnostics for Windows. Alternately, you can access Diagnostics for Windows via Error tab Save button to save an Error tab report. 2-16 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 29
processor, physical drives, PCI devices, memory, graphics, operating system version number, in troubleshooting system problems, and streamlines the service process this program: 1. Click Start > HP Information Center > Configuration Record. Alternately Service Reference Guide, d500 336492-005 2-17 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 30
available through a SoftPaq at http://www.hp.com under Support and Drivers. 2.5.1 Installing or Upgrading Remote Diagnostics Enabling Agent 1. Visit http://www.hp.com/support/files and click on the applicable product. 2. Locate the appropriate software and download the latest version. 3. Execute the - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 31
Setup Utilities and Diagnostics Features 2.7 Restoring the Software The Windows operating system and software can be restored to its original state by using the Restore CD. See the Restore CD for complete instructions on using this feature. Service Reference Guide, d500 336492-005 2-19 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 32
Setup Utilities and Diagnostics Features 2-20 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 33
information to help you select the best deployment method. The Restore Plus! CD, ROM-based setup, and ACPI hardware provide further assistance with recovery of system software, configuration management and troubleshooting, and power management. Service Reference Guide, d500 336492-005 3-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 34
the system BIOS settings. To initiate Remote System Installation, press F12 when the F12 = Network Service Boot message appears in the lower-right corner of the HP logo screen. Follow the instructions on the screen to continue the process. The default boot order is a BIOS configuration setting that - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 35
help desk tickets ❏ Remote troubleshooting ❏ Remote problem resolution ❏ Client disaster recovery ■ Software and Operations Management ❏ Ongoing desktop management ❏ HP system SW deployment ❏ Application self-healing For more information and details on how to download a fully-functional 30-day - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 36
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. 3-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 37
Desktop Management 3.4.3 FailSafe Boot Block valid image. ✎ Some models also support recovery from a ROMPaq CD. ISO ROMPaq images are included with selected models in the downloadable ROM softpaqs. When the bootblock associated with each combination. Service Reference Guide, d500 336492-005 3-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 38
instructions on the screen. ✎ This requires a diskette drive or a supported USB flash media device, such as DriveKey. 3. To replicate the configuration, click File > Restore from Diskette, and follow the instructions the desired power button setting. 3-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 39
made the task of locating, accessing, evaluating, 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 40
, using the Computer Setup Utilities. See the Computer Setup (F10) Utility Guide included with the computer for additional information and instructions on using the Computer Setup Utilities. ■ Remotely, using HP Client Manager or System Software Manager. This software enables the secure, consistent - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 41
Desktop disk, and provides a means of recovering the "last known good" MBR. From the Computer Setup Utilities (F10) menu. Memory Change Alerts Detects when memory Utility Guide. Support for security features may vary depending on your specific computer configuration. Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 42
Desktop the Hardware Reference Guide on the disk, and provides a means of recovering the "last known good" MBR. From the Computer Setup Utilities (F10) menu. Memory Change Alerts Detects when memory Memory Change Alerts, refer to the online Intelligent Manageability Guide Guide. Support for security - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 43
Desktop Management Computer Setup, see the Computer Setup (F10) Utility Guide. Support for security features may vary depending on your specific Password and follow the instructions on the screen. 4. Before exiting, click File > Save Changes and Exit. Service Reference Guide, d500 336492-005 3-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 44
Desktop Management 3.5.3 Establishing a Power-On key again to access the utility. 3. Select Security, then Power-On Password and follow the instructions on the screen. 4. Before exiting, click File > Save Changes and Exit. Entering a can continue. 3-12 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 45
Desktop Management Changing a Power-On or Setup Password 1. Turn on or restart the computer. If you are in Windows, click Start > characters. The power-on password and setup password may also be changed using the Security options in Computer Setup. Service Reference Guide, d500 336492-005 3-13 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 46
Desktop the computer. Refer to the Troubleshooting Guide for instructions on clearing passwords. 3.5.4 DriveLock DriveLock when DriveLock-capable hard drives are detected. DriveLock is intended for HP customers for whom data security is the paramount concern. For such Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 47
Desktop Management Using DriveLock unauthorized software, other asset control functions, and support. For users with less stringent security requirements, HP does not recommend enabling DriveLock. Users in this restrict users from enabling DriveLock. Service Reference Guide, d500 336492-005 3-15 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 48
Desktop the utility. 3. Select Security, then Smart Cover, and follow the instructions on the screen. 4. Before exiting, click File > Save Changes is a software-controllable cover lock featured on select HP computers. This lock prevents unauthorized access to the internal Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 49
Desktop failure ■ PC component failure HP. Be prepared; order this key before you need one (Tamper-resistant wrench PN 166527-001 or tamper-resistant bits PN 166527-002). For more information about using the Smart Cover FailSafe Key, consult the Hardware Reference Guide. Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 50
Desktop Management 3.5.6 Master Boot Record Security The Master Boot Record (MBR) contains information needed to successfully boot from a disk and to access the data stored on the disk incorrect use of certain disk utilities. It also of the current bootable disk; ■ Restore the previously saved MBR - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 51
Desktop or formatting of the disk, you may receive error messages from the disk utility or a area. For illustrated instructions, please see the Removal Support for Fingerprint Identification Technology varies by model. For more information, visit http://www.hp.com/security. Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 52
Desktop select HP computers. DPS is designed to help diagnose problems that might result in unwarranted hard drive replacement. When HP 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 53
Plug Ground Transmit data Transmit data Ground Receive data Receive data Ground Host Plug Ground Receive data Receive data Ground Transmit data Transmit data Ground Service Reference Guide, d500 336492-005 4-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 54
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 4-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 55
-conductor cable. ✎ The industry standard 1.44 MB diskette drive has its own separate channel and is not included as a part of the maximum four drives. Service Reference Guide, d500 336492-005 4-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 56
channels receive the greatest possible bandwidth. ■ The bootable ATA hard drive should always be installed on the primary channel in the Device 0 position. 4-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 57
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. Service Reference Guide, d500 336492-005 4-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 58
Attach Sequence Rule to determine the best drive installation sequence. Device Name Attach Sequence Worksheet Device Class Position Number Channel Name Device Number 4-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 59
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 Service Reference Guide, d500 336492-005 4-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 60
in the same system, the Ultra ATA drive will become the boot drive unless the boot order is changed in Computer (F10) Setup. 4-8 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 61
SMART Drives The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network IDE controller • PATA in Legacy Mode • SATA in Legacy Mode Service Reference Guide, d500 336492-005 4-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 62
Native Mode The native mode is used to access devices attached to add-in cards and is not supported by many legacy operating systems. Addresses are assigned by PCI Plug-n-Play BIOS and the IRQ is shared ■ Offset 1Ch-Secondary Control base address 4-10 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 63
. SATA 1 B1. IDE Secondary Device 0 B2. IDE Secondary Device 1 *Refer to section Section 4.3.2, "PATA Attach Sequence Rules by Class Priority," for PATA attach sequence rules. Service Reference Guide, d500 336492-005 4-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 64
Serial and Parallel ATA Drive Guidelines and Features 4-12 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 65
to the procedures and precautions described in this chapter is essential for proper service. Ä CAUTION: When the computer is plugged into an AC power source voltage board or component damage. 5.1 Chassis Designations 5.1.1 Convertible Minitower (CMT) Service Reference Guide, d500 336492-005 5-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 66
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1.2 Small Form Factor (SFF) 5.1.3 Ultra-Slim Desktop (USDT) 5-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 67
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, d500 336492-005 5-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 68
nonconductive materials such as ordinary plastic assembly aids and Styrofoam. ■ Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive. 5.2.5 -dissipative table or floor mats with hard tie to ground ■ Field service kits 5-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 69
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. Service Reference Guide, d500 336492-005 5-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 70
wipe the ball with a clean, dry cloth before reassembly. ■ To clean the mouse body, follow the procedures in Section 5.3.2, "Cleaning the Computer Case." 5-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 71
service the computer, you need the following: ■ Torx T-15 screwdriver (Compaq screwdriver with bits, PN 161946-001) ■ Torx T-15 screwdriver with small process, it can damage the unit. HP strongly recommends that all screws removed during disassembly Service Reference Guide, d500 336492-005 5-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 72
or snagged by parts being removed or replaced. Ä CAUTION: When servicing this computer, ensure that cables are placed in their proper location replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures. Å WARNING: This computer contains a - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 73
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 ; using the wrong screw in an application may damage the unit. Service Reference Guide, d500 336492-005 6-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 74
- 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 secure the lock in place with the two tamper-proof screws. 6-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 75
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.3 Hood Sensor 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove slot 2. To install the hood sensor, reverse the removal procedure. Service Reference Guide, d500 336492-005 6-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 76
Removal and 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 may also be used with a security cable to secure the computer to a fixed object. I 6-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 77
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.5 Computer Access Panel 1. Prepare the computer for disassembly (Section 6.1, "Preparation for it off the unit 2. To install the computer cover, reverse the removal procedure. Service Reference Guide, d500 336492-005 6-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 78
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.6 Front Bezel 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the 2. To reinstall the front bezel, reverse the removal procedure 6-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 79
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.7 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove located at the bottom of the subpanel when properly oriented. Service Reference Guide, d500 336492-005 6-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 80
Convertible Minitower (CMT) Chassis 6.7.2 Diskette Drive Bezel or Bezel Blank Press up on the two small retaining clips 1 on the bottom of the bezel insert, press down on the two small more information. Ä CAUTION: When handling a memory module, be careful not to touch any Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 81
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 4. Open both latches of the memory module socket 1, and insert the memory module into the socket 2. Begin by the corresponding expansion slot on the back of the computer chassis. Service Reference Guide, d500 336492-005 6-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 82
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 5. Push down and out on the two green thumb tabs inside the chassis and rotate the expansion card chassis. Pull the slot cover straight up to release it from the chassis frame. 6-10 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 83
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 7. If you are removing an expansion card from a standard expansion socket, hold the an installed expansion card, disconnect any cables that may be attached to the expansion card. Service Reference Guide, d500 336492-005 6-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 84
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 8. If you are removing an AGP card from an AGP expansion socket with a retention a piece of cardboard taped in place) for proper cooling of internal components during operation. 6-12 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 85
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 11. Slide the bracket on the end of , if necessary. Refer to the Computer Setup (F10) Utility Guide on the Documentation Library CD for instructions about using Computer Setup. Service Reference Guide, d500 336492-005 6-13 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 86
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.10 PCI Retainer Latch If you have locked the Smart Cover Lock, use Computer Setup to unlock green thumb tabs inside the chassis and rotate the expansion card retention latch up. 6-14 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 87
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 5. Use a thin flat blade screwdriver to pry up on the broken plastic latches 1 then, complete right 1, lower it into position 3, and slide it to the left 4 to secure it in place. Service Reference Guide, d500 336492-005 6-15 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 88
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 7. With the bar in a slightly rotated position, install the latches through the openings in the back of the chassis and press them firmly in place on the rotating bar. 6.11 Drives The computer supports up to six drives that may - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 89
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.11.1 Drive drive bay has a shorter depth than the upper two bays. The bottom bay supports a drive that is no more than 6.7 inches in depth, including the cables Setup. Service Reference Guide, d500 336492-005 6-17 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 90
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.11.2 Hard Drive Ä CAUTION: To prevent loss of work and damage to the computer or 6.6, "Front Bezel"). 5. Disconnect the power 1 and data 2 cables from the back of the drive. 6-18 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 91
Removal and Replacement 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. - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 92
- Convertible Minitower (CMT) Chassis 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. 6-20 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 93
Removal 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 d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 94
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 d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 95
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.11.4 guide screws are provided on the side of the drive bay under the access panel. The diskette drive use M3 metric screws. The HP-supplied metric screws are black. The HP Service Reference Guide, d500 336492-005 6-23 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 96
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.12 Front I/O Device 1. Prepare the computer cables from the system board: the front USB cable pair and the front audio cable. 4. Remove the two screws that secure the front I/O device to -005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 97
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.13 Power Switch Assembly 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove to make it easier to grab the free end of the cable. Service Reference Guide, d500 336492-005 6-25 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 98
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.14 System Board 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the 1 and then, push the board into its locked position 2. 6-26 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 99
Procedures- Convertible Minitower (CMT) Chassis 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 100
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.15.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 6-28 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 101
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.15.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the metal the date and time, your passwords, and any special system setups, using Computer Setup. Service Reference Guide, d500 336492-005 6-29 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 102
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.16 Processor and Heatsink There are three different heatsinks that may be used on this fan control to the system board. 6. Replace the access panel and reconnect the computer. 6-30 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 103
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.16.2 Type 2 1. Release the tension from the heatsink 1 and 2. 2. Remove the retaining clips control to the system board. 6. Replace the access panel and reconnect the computer. Service Reference Guide, d500 336492-005 6-31 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 104
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.16.3 Type 3 1. Release the tension from the heatsink 1. 2. Remove the retaining clips 2. 3. Remove the system board. 6. Replace the access panel and reconnect the computer. 6-32 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 105
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.17 Speaker 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the speaker 2. To install the speaker, reverse the removal procedures. Service Reference Guide, d500 336492-005 6-33 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 106
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.18 Chassis Fan 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the 2. To install the fan assembly, reverse the removal procedure. 6-34 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 107
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.19 Power Supply Å WARNING: Voltage is always present on the system board when the lift it out of the computer 2. To install the power supply, reverse the removal procedure. Service Reference Guide, d500 336492-005 6-35 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 108
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.20 Changing from Desktop to Minitower 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock it. 2. Prepare drivelock, pull the drives out of the drive bay. 6-36 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 109
Replacement Procedures- Convertible Minitower (CMT) Chassis 7. Before inch drive bay has a shorter depth than the upper two bays. The bottom bay supports a drive that is no more than 6.7 inches in depth, including the cables that desktop configuration. Service Reference Guide, d500 336492-005 6-37 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 110
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 12. Reposition the subpanel (rotate it 180°) with the logo at the bottom, then snap it back into the bezel. 6-38 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 111
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6.21 Changing from Minitower to Desktop 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock it. 2. its drive bay. Repeat this step for each 5.25-inch drive. Service Reference Guide, d500 336492-005 6-39 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 112
Replacement Procedures- Convertible Minitower (CMT) Chassis 7. Before inch drive bay has a shorter depth than the upper two bays. The bottom bay supports a drive that is no more than 6.7 inches in depth, including the cables that desktop configuration. 6-40 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 113
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 12. Reposition the subpanel (rotate it 180°) with the logo at the bottom, then snap it Smart Cover Lock, use Computer Setup to relock the lock and enable the Smart Cover Sensor. Service Reference Guide, d500 336492-005 6-41 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 114
Removal and Replacement Procedures- Convertible Minitower (CMT) Chassis 6-42 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 115
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 ; using the wrong screw in an application may damage the unit. Service Reference Guide, d500 336492-005 7-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 116
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 lock in place with the two tamper-proof screws. 7-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 117
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.3 Hood Sensor 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove board 3. To install the hood sensor, reverse the removal procedure. Service Reference Guide, d500 336492-005 7-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 118
and Replacement Procedures- Small Form Factor (SFF) Chassis 7.4 External methods for using the cable lock. While both methods work, for added security HP recommends that you use the method shown on the left where the cable lock penetrates object. I 7-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 119
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.5 Computer Access Panel 1. Prepare the computer for disassembly (Section 7.1, "Preparation for lift it off the unit. To install the computer cover, reverse the removal procedure. Service Reference Guide, d500 336492-005 7-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 120
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.6 Front Bezel 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the 2. To reinstall the front bezel, reverse the removal procedure 7-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 121
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.7 Front Drive Bezels 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. To install a bezel or a bezel blank, reverse the removal procedure. Service Reference Guide, d500 336492-005 7-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 122
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.8 Memory Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 123
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 To install the card cage, reverse the removal procedures. Service Reference Guide, d500 336492-005 7-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 124
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.1 Riser Card 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock ( then remove the card. To install the riser card, reverse the removal procedure. 7-10 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 125
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.2 Expansion Card 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock has a green label on it marked 2). 7. Remove the slot cover by sliding it out 2. Service Reference Guide, d500 336492-005 7-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 126
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 8. To remove an expansion card, hold the card at each end and carefully rock it back and forth to release it from the carrier. Be sure not to scrape the card against other components. 7-12 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 127
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.9.3 AGP Card 1. If you have locked the Smart Cover Lock, use Computer Setup to unlock a piece of cardboard taped in place) for proper cooling of internal components during operation. Service Reference Guide, d500 336492-005 7-13 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 128
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 11. Connect external cables to the installed necessary. Refer to the Computer Setup (F10) Utility Guide on the Documentation Library CD for instructions about using Computer Setup. 7-14 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 129
Small Form Factor (SFF) Chassis 7.10 Drives The computer supports up to three drives. 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 run the Restore Plus! CD to load the Compaq factory-installed - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 130
- Small Form Factor (SFF) Chassis 7.10.2 Cable Routing Ä CAUTION: The drive data and power cables must be kept clear of the power supply and the power supply fan to avoid damage or restrict air flow. Follow these guidelines when routing the cables in the computer: 1. Route the optical drive audio - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 131
Procedures- Small Form Factor (SFF) Chassis the Easy Access drive bay to the upright position. 6. Disconnect the audio, signal, and drive power cables from the drive. The other end computer. To replace the drive: 1. Install two guide screws in the lower holes on each side of the drive. Ä CAUTION: - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 132
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis ✎ When replacing the drive, transfer the four screws from the old drive to the new one. The screws take the place of drive rails. 2. Position the guide screws on the drive into the J-slots in the drive bay 1. Then, slide the drive - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 133
Small Form Factor (SFF) Chassis 3. Raise the Easy Access drive bay to the upright position and connect the flat ribbon cable and audio cable to the system board. 4. Connect the power cable, flat ribbon cable, and audio the computer. Ä CAUTION: When servicing the computer, ensure that cables are - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 134
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.10.4 External 3.5-inch 5. Raise the Easy Access drive bay to the upright position. 6. Disconnect the audio, signal, and drive power cables from the drive. The other end of the cables 20 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 135
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis ✎ The guide screws on a 3.5-inch diskette drive 1 are placed closer together than on the hard drive 2. 11. Insert the rear screws of the hard drive 1 into the - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 136
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 14. If the drive cage was raised to gain access to the drive cables, lower it to its power cable and signal cable from the back of the drive. Disconnecting Cables from the Hard Drive 7-22 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 137
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7. Press and hold the drive release latch 1. 8. Slide the drive to the right of the bay of drive rails. You will need a Torx T-15 screwdriver to remove and re-install the guide screws. Service Reference Guide, d500 336492-005 7-23 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 138
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.11 Front I/O Devices 1. Prepare the device cables from the system board: the front USB cable pair and the front audio cable. 4. Remove the power supply from the chassis (Section 7.18, " 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 139
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. To install the power switch assembly, reverse the removal procedure. Service Reference Guide, d500 336492-005 7-25 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 140
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.13 System Board 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the drawing 1 while sliding the tray into its locked position 2. 7-26 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 141
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.14 Chassis Fan 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove fan housing and result in a "clicking" noise when the fan is running. Service Reference Guide, d500 336492-005 7-27 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 142
Procedures- Small Form Factor (SFF) Chassis 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 143
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.15.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Service Reference Guide, d500 336492-005 7-29 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 144
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.15.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 7-30 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 145
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.16 Processor and Heatsink 1. Prepare the computer for disassembly (Section 7.1, "Preparation for the system board. 6. Replace the access panel and reconnect the computer. Service Reference Guide, d500 336492-005 7-31 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 146
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.17 Speaker 1. Prepare the computer for disassembly (Section 7.1, "Preparation for Disassembly"). 2. Remove the computer it. To install the speaker, reverse the removal procedures. 7-32 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 147
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7.18 Power Supply Å WARNING: Voltage is always present on the system board when the supply out the back of the computer 3. To install the power supply, reverse the removal procedure. Service Reference Guide, d500 336492-005 7-33 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 148
Removal and Replacement Procedures- Small Form Factor (SFF) Chassis 7-34 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 149
8 Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) 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 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 150
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. the chassis and, at the same time, secure the computer to a fixed object. 8-2 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 151
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 Service Reference Guide 336492-005 8-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 152
-Slim Desktop (USDT) Chassis 8.3 Computer Access Panel Remove the bottom access panel to remove or replace and expansion card. Remove the top access panel for all other service activities. unit 2. To install the access panel, reverse the removal procedure. 8-4 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 153
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.3.2 Bottom Access Panel 1. Prepare the computer for disassembly (Section 8.1, "Preparation for then lift it off the unit 2. To install the access panel, reverse the removal procedure. Service Reference Guide 336492-005 8-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 154
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.4 Front Bezel 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the it 2. To reinstall the front bezel, reverse the removal procedure. 8-6 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 155
on the memory socket. 4. Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position 3. 5. Repeat steps 4 and 5 for any additional modules that you want to install. Service Reference Guide 336492-005 8-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 156
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis ✎ The computer automatically recognizes the additional memory when the computer is turned on. To reassemble the computer, place) for proper cooling of internal components during operation. 8-8 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 157
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 7. Slide the bracket on the end of the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide on the Documentation Library CD for instructions about using Computer Setup. Service Reference Guide 336492-005 8-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 158
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.7 Expansion Card Locking Lever 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly their receptacles. Complete the assembly by reversing the steps 1-3. 8-10 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 159
Desktop (USDT) Chassis 8.8 Drives This computer supports a single hard drive and a single MultiBay drive. A Torx T-15 screwdriver is needed to remove and install the guide will need to run the Restore Plus! CD to load the Compaq factory-installed files. 8.8.1 Service Reference Guide 336492-005 8-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 160
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 4. Disconnect the data and power cables from the back of the drive. 5. Remove the four guide screws (two on each side) from the old drive. You the connector partially out of its socket. 8-12 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 161
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.8.2 MultiBay Drive 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the access panel if you do not want to engage the drive security lock. Service Reference Guide 336492-005 8-13 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 162
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.9 System Fan 1. Prepare the computer for disassembly ( Ensure that the flanges on the tube-end of the fan are properly positioned in the guide slots on the power supply. Ä CAUTION: When installing the fan assembly, make sure the - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 163
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.10 Front Chassis Panel Removing the front chassis panel makes it easier to remove the of the chassis and slide the panel into its final position before installing the retaining screws. Service Reference Guide 336492-005 8-15 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 164
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.11 Front I/O Device 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the . To install the front I/O device, reverse the removal procedure. 8-16 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 165
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.12 Power Switch Assembly 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly panel2. To install the power switch assembly, reverse the removal procedure. Service Reference Guide 336492-005 8-17 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 166
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.13 Processor and Heatsink 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the ZIF socket handle to ensure the processor is fully seated. 8-18 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 167
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.14 Power Supply Å WARNING: Voltage is always present on the system board when the computer and do not interfere with the heatsink, the fan assembly, or the hard drive release latch. Service Reference Guide 336492-005 8-19 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 168
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 d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 169
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.15.1 Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the , your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup Guide. Service Reference Guide 336492-005 8-21 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 170
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.15.2 Type 2 Battery Holder 1. To release the battery from its holder, squeeze the your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup Guide. 8-22 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 171
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.16 Drive Cage Assembly 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove is used to secure the foot of the drive cage thru the system board. Service Reference Guide 336492-005 8-23 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 172
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.17 Speaker 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the the chassis. To install the speaker, reverse the removal procedure. 8-24 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 173
Removal and Replacement Procedures- Ultra-Slim Desktop (USDT) Chassis 8.18 Chassis Fan 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. of the chassis 2 To install the chassis fan, reverse the removal procedure Service Reference Guide 336492-005 8-25 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 174
Desktop (USDT) Chassis 8.19 System Board 1. Prepare the computer for disassembly (Section 8.1, "Preparation for Disassembly"). 2. Remove the computer top access panel (Section 8.3.1, "Top Access Panel"). 3. Remove the memory modules (Section 8.5, "Memory . 8-26 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 175
connectors. Some of these connectors may not be used on the product being serviced. Enhanced Keyboard Connector and Icon Pin Signal 1 Data 2 Unused 3 Ground Unused Ethernet BNC Connector and Icon Pin 1 (Center) 2 (Shield) Signal Data Ground Service Reference Guide, d500 336492-005 A-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 176
AUI Differential Receive Pin Signal 9 Positive AUI Differential Receive 10 +12V 11 Ground 12 Ground 13 Unused 14 Unused 15 Unused 16 Unused A-2 336492-005 Service Reference Guide, d300 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 177
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, d300 336492-005 A-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 178
) 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 336492-005 Service Reference Guide, d300 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 179
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, d300 336492-005 A-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 180
A_GROUND_I 63 FP16 47 audio_r 64 FP17 48 FP01 65 FP18 49 FP02 66 FP19 50 FP03 51 FP04 67 FP20 68 FP21 A-6 336492-005 Service Reference Guide, d300 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 181
# 3.3VAux Ground Reserved VCC 3.3 DEVSEL# Vddq PERR# Ground SERR# C/BE1# Vddq AD14 AD12 Ground AD10 AD8 Vddq AD_STB0 AD7 Ground AD5 AD3 Vddq AD1 VREFCG Service Reference Guide, d300 336492-005 A-7 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 182
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 336492-005 Service Reference Guide, d300 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 183
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 with appliance inlet on the Switch Box. Service Reference Guide, d500 336492-005 B-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 184
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 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 185
card. Run Computer Setup (F10 Setup). Set the date and time under Control Panel or in F10 Setup depending on the operating system. If the problem persists, replace the RTC battery. Service Reference Guide, d500 336492-005 C-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 186
. Replace memory module if problem persists. Reseat the processor in its socket. If the processor does not respond, replace it. Verify proper memory module type. Try another memory socket. Replace memory with a module conforming to the SPD standard. C-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 187
device. Both external and internal ports are assigned to parallel port X. 410-Audio Interrupt Conflict 411-Network Interface Card Interrupt Conflict 417-Network Interface card Failure the IRQ. Unplug AC power cord, wait 5 seconds, then reboot unit. Service Reference Guide, d500 336492-005 C-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 188
monitor is attached and turned on. Replace the graphics controller. Install latest version of ROMPaq to restore image. Reseat fan cable. Reseat the fan. Replace the fan. Reseat chassis, rear chassis, or (F10 Setup). Remove expansion cards. Clear CMOS. C-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 189
assembly disconnected from system board. 1157-Front Cables Not Detected Front cable assembly (audio and USB) disconnected from the system board. Recommended Action Replace system board if minimal and attach front cable assembly to the system board. Service Reference Guide, d500 336492-005 C-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 190
Messages Screen Message 1201-System Audio Address Conflict Detected 1202- Protection System text if applicable. Apply firmware patch if applicable. (see www.hp.com/support) Back up contents and replace hard drive. If you do not require bootable disk. C-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 191
number to be entered, download from http://www.hp.com and run SP5572.EXE (SNZERO.EXE). Run Computer Setup and try to enter serial number under Security, System ID, then save changes. Replace the memory module. Run Computer Setup and Diagnostic utilities. Service Reference Guide, d500 336492-005 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 192
POST Error Messages C-8 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 193
drivers been installed for each application? ■ Remove all diskettes from the diskette drives before you turn on the system. ■ Are all switches set correctly? ■ Is the NIC Remote Wakeup cable (featured on some models) connected between the NIC and the riser/system board? Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 194
Troubleshooting Without Diagnostics Solving Minor Problems Solving Minor Problems Problem Cause Replace the RTC battery. Computer appears to pause periodically. Network driver is loaded and no network connection is established. Establish a network D-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 195
Troubleshooting Without Diagnostics Solving Minor Problems (Continued) Problem Cause Computer powered off automatically and the Power LED flashes Red two times, once system board is off, then replace the power supply. 6. Replace the system board. Service Reference Guide, d500 336492-005 D-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 196
Troubleshooting Without Diagnostics Solving Power Supply Problems Solving Power Supply Problems Problem Cause Power supply shuts down intermittently. Voltage selector switch on properly. 4. Replace the power supply. 5. Replace the system board. D-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 197
Troubleshooting Without Diagnostics Solving Diskette Problems Solving Diskette Problems Problem removable hard drive that has DriveLock security enabled. (This feature supported on select models only.) Diskette is not formatted. Diskette is disk. Service Reference Guide, d500 336492-005 D-5 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 198
Troubleshooting Without Diagnostics Solving Diskette Problems (Continued) Problem Cause Cannot format diskette. Invalid media reported. A problem has occurred with a disk transaction. The directory structure is bad, or there is a problem Options. D-6 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 199
Troubleshooting Without Diagnostics Solving Hard Drive Problems Solving Hard Drive Problems Problem Cause Hard drive error occurs. Hard disk has bad sectors or has failed. Disk transaction problem. Either the directory structure is bad or there is a problem with a file. Drive not found ( - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 200
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Nonsystem disk/NTLDR Security is enabled, try restoring the previously saved MBR image by entering Setup and selecting Security > Restore Master Boot Record. 1. 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 201
Solving Display Problems Troubleshooting Without Diagnostics Solving Display Problems Problem Cause Solution Blank screen (no video). The cable connections are not and select the Settings tab. 4. Use the sliding control to reset the resolution. Service Reference Guide, d500 336492-005 D-9 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 202
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Power LED or flashes. If the graphics controller was upgraded, the correct video drivers may not be loaded. Monitor is not capable of displaying requested resolution 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 203
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem font you are using does not support that particular symbol. Solution Lower 2. Manually synchronize the Clock and Clock Phase on-screen display functions. Download SoftPaq Service Reference Guide, d500 336492-005 D-11 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 204
Troubleshooting Without Diagnostics Solving Audio Problems Solving Audio Problems Problem Cause Solution Sound does not come out of the speaker or headphones. Software volume control is the computer will shut down and you will lose your data. D-12 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 205
Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Noise or no sound comes out of the speakers or headphones. 1. If using digital speakers that have a stereo jack and want the system to auto-switch to digital, use a - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 206
Troubleshooting Without Diagnostics Solving Printer Problems Solving Printer Problems Problem Cause Printer will not print. Printer is not turned on and online. The correct printer driver driver is not installed. The cables may not be connected properly. Printer memory driver. Make the - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 207
Troubleshooting Without Diagnostics Solving Keyboard and Mouse Problems Solving Keyboard and Mouse Problems Problem Cause Solution Keyboard commands and typing are not recognized by the computer. cover from the bottom of the mouse and clean it. Service Reference Guide, d500 336492-005 D-15 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 208
Troubleshooting Without Diagnostics Solving Hardware Installation Problems instructions that appear on the screen. Solving Hardware Installation Problems Problem memory modules were used in the upgrade or memory and follow the instructions for accepting are using the correct memory modules and to - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 209
Troubleshooting Without Diagnostics Solving Hardware Installation Problems (Continued) Problem Cause Solution Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. Memory board. Service Reference Guide, d500 336492-005 D-17 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 210
Troubleshooting Without Diagnostics Solving Network Problems These guidelines do not discuss the process of debugging the network cabling. Solving Network Problems Problem Cause Wake-on-LAN feature is not functioning. Wake-on-LAN is not enabled. Network driver is a problem with the drivers - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 211
Troubleshooting Without Diagnostics Solving Network Problems (Continued) Problem the resource settings for the board. Reinstall the network drivers, using the Restore Plus! CD. Ensure that both ends of the cable drivers for your NIC. Flash the ROM. Service Reference Guide, d500 336492-005 D-19 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 212
Troubleshooting Without Diagnostics Solving Memory Problems Ä CAUTION: For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the system will not boot the operating system. Solving Memory Problems Problem Cause System will not boot or does not - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 213
Troubleshooting Without Diagnostics Solving Processor Problems . Solving Processor Problems Problem Cause Poor performance is experienced. Processor is hot. Power LED is . 1. Check to see that the processor is present. 2. Reseat the processor. Service Reference Guide, d500 336492-005 D-21 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 214
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems Solving CD-ROM and DVD Problems Problem the type of media played, such as audio or video. CD or DVD disc is to the drive. 2. Install correct device driver. See the documentation that came with the Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 215
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems (Continued) Problem Cause Solution Recording audio CDs is difficult or impossible. Wrong or poor quality media type. 1. "power" LED light on the front of the cable/DSL modem. Service Reference Guide, d500 336492-005 D-23 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 216
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Unable to connect to the Internet. (continued) Cable/DSL service is not available or has been interrupted ISP and launch the desired program. D-24 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 217
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Internet takes too long to download Web sites If there are further problems, click the Troubleshoot button and follow the on-screen instructions. Service Reference Guide, d500 336492-005 D- - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 218
Troubleshooting Without Diagnostics D-26 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 219
and Riser Board Reference Designators These reference designators are used on most but not all HP system and riser boards. Designator BT1 CR1 CR2 CR3 CR11 CR34 CR35 E14 E49 E50 DVI connector Keyboard connector (Closest to power supply) Mouse connector Service Reference Guide, d500 336492-005 E-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 220
CD-ROM) Primary chassis fan connector Wake on LAN (WOL) connector (NIC cable) Diskette drive connector Second Audio connector Alert on LAN NIC connector AUI connector Fan command/fan sink header Primary IDE connector Secondary IDE (MultiBay) connector E-2 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 221
Following memory slots Primary processor socket Secondary processor socket ROM socket Security chip socket Primary (TH) system clock crystal Secondary (SMT) system clock crystal Primary (YTH) NIC clock crystal Secondary (SMT) NIC clock crystal RTC clock crystal/tie-down Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 222
System Board and Riser Board Reference Designators E-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 223
SPD information In addition, the computer supports: ■ 128Mbit, 256Mbit, and 512Mbit non-ECC memory technologies ■ single-sided and double-sided DIMMS ■ DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported Service Reference Guide, d500 336492-005 F-1 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 224
memory channel B. The system board shown may differ from the one in your product. Item 1 2 3 4 Description DIMM socket XMM1, Channel A DIMM socket XMM2, Channel A DIMM socket XMM3, Channel B DIMM socket XMM4, Channel B Socket Color Black Blue Black Blue F-2 336492-005 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 225
Memory The system will automatically operate in single channel mode or a higher-performing dual channel mode, depending on how the DIMMs are XMM1 and are adding a second DIMM, it is recommended that you install an identical DIMM into the XMM3 socket. Service Reference Guide, d500 336492-005 F-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 226
Memory F-4 336492-005 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 227
disk, important information 3-19 C cable CMT hard drive 6-18 proper handling 5-8 SFF hard drive 7-22 SFF optical drive 7-19 USDT hard drive 8-12 cable layout, PATA 4-3 cable lock CMT 6-4 SFF 5-1 desktop to minitower conversion 6-36 disassembly preparation 6-1 Service Reference Guide, d500 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 228
17 configuring power button 3-6 connector pin assignments A-1 to A-8 controlling access to computer 3-8 conversion CMT desktop to minitower 6-36 CMT minitower to desktop 6-39 convertible minitower. See CMT country-specific power cord set requirements B-2 cover lock security, caution 3-16 cover lock - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 229
8-18 M Master Boot Record Security, setting 3-18 memory CMT removal and replacement 6-8 dual channel mode F-3 SFF removal and replacement 7-8 USDT removal and replacement 8-7 menu bar, Diagnostics for Windows 2-15 microphone pin assignments A-3 Service Reference Guide, d500 336492-005 Index-3 - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 230
audio D-12 CD-ROM and DVD D-22 diskette D-5 display D-9 drive key D-23 hard drive D-7 installing hardware D-16 Internet access D-23 keyboard D-15 memory D-20 mouse D-15 network D-18 optical drives D-22 power supply D-4 printer D-14 processor D-21 processor CMT removal and replacement 6-30 SFF - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 231
hard drive 7-22 SFF heatsink 7-31 SFF hood sensor 7-3 SFF memory 7-8 SFF optical drive 7-17 SFF padlock 7-4 SFF power supply 7-33 SFF power switch assembly 7-25 SFF riser card 7-10 SFF Smart Cover Lock 7-2 SFF speaker 7-31, 7-32 SFF system board 7-26 Service Reference Guide, d500 Index USDT access - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 232
Lock 7-2 speaker removal and replacement 7-32 system board removal and replacement 7-26 tamper-proof screws 7-2 Small Form Factor. See SFF Smart Cover Lock CMT 6-2 locking 3-17 SFF 7-2 unlocking 3-17 Smart Cover Sensor protection levels 3-16 setting 3-16 software asset tracking 3-8 Computer Setup - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 233
PC Deployment 3-1 Remote Diagnostics Enabling Agent SoftPaq 2-18 ROMPaq images 3-4 Subscriber's Choice 3-4 support software 3-7 System Software Manager 3-3, 3-4, 3-6 World Wide Web addresses. See Web sites wrench, tamper resistant CMT 6-2 wrench, tamper-resistant 5-7 SFF 7-2 Service Reference Guide - Compaq d538 | HP Compaq Business Desktop d500 Service Reference Guide, 5th Editi - Page 234
Index Index-8 336492-005 Service Reference Guide, d500
service reference guide
Business Desktop d500 Series
5th Edition
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.
Document Part Number 336492-005