Page 1 Service Reference Guide HP Compaq dx7400 Business PC...
Page 2 © Copyright 2007 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are trademarks of Microsoft Corporation in the U.S. and other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.
Page 3: About This Book
About This Book WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.
Page 4 About This Book...
Page 5: Table Of Contents
Table of contents 1 Installing and Customizing the Software Installing the Operating System ......................1 Installing or Upgrading Device Drivers ....................2 HP Backup and Recovery Manager ..................... 2 2 Computer Setup (F10) Utility Computer Setup (F10) Utilities ......................3 Using Computer Setup (F10) Utilities ..................
Page 6 HP Client Management Interface ..................21 HP System Software Manager ..................22 HP Client Manager ......................23 HP ProtectTools Security Manager ................... 24 HP Client Premium Suite ....................24 HP Client Foundation Suite ....................24 HP OpenView Client Configuration Manager ..............25 HP OpenView PC Configuration Management Solution ............
Page 7 Surge-Tolerant Power Supply .................... 45 Thermal Sensor ......................... 45 5 Serial ATA (SATA) Drive Guidelines and Features SATA Hard Drives ..........................46 SATA Hard Drive Cables ........................46 SATA Data Cable ......................46 SMART ATA Drives ..........................46 Hard Drive Capacities ........................47 6 Identifying the Chassis, Routine Care, and Disassembly Preparation Chassis Designations .........................
Page 8 Drive Positions ........................67 System Board Drive Connections ..................68 5.25-inch Drive ........................69 3.5-inch Drive ........................70 3.5-inch Hard Drive ......................71 ReadyBoost Card ..........................72 Front I/O Panel Housing Assembly ....................73 Power Switch Assembly ........................74 Speaker ............................. 75 Second Serial Port ..........................
Page 9 System Board ........................... 113 Battery .............................. 115 Type 1 Battery Holder ...................... 116 Type 2 Battery Holder ...................... 116 Type 3 Battery Holder ...................... 117 Installing a Security Lock ........................118 Appendix A Connector Pin Assignments Keyboard ............................119 Mouse ............................... 119 Ethernet BNC ...........................
Page 10 Solving Hard Drive Problems ......................152 Solving Media Card Reader Problems ..................... 154 Solving Display Problems ......................... 156 Solving Audio Problems ........................159 Solving Printer Problems ........................161 Solving Keyboard and Mouse Problems ..................162 Solving Hardware Installation Problems ................... 163 Solving Network Problems .......................
Page 11: Installing And Customizing The Software
Installing and Customizing the Software NOTE: If the computer was shipped with Microsoft Windows Vista loaded, you will be prompted to register the computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen.
Page 12: Installing Or Upgrading Device Drivers
Installing or Upgrading Device Drivers When installing optional hardware devices after the operating system installation is complete, you must also install the drivers for each of the devices. If prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse button in the dialog box to locate the i386 folder.
Page 13: Computer Setup (F10) Utility
Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices.
Page 14 Six menu headings appear on the Computer Setup Utility screen: ● System Information ● Main ● Advanced ● Boot ● PC Health ● Exit Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and down) keys to select the option you want, then press Enter.
Page 15: Computer Setup-System Information
Computer Setup—System Information NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-2 Computer Setup—System Information Option Description Product Name (view only) SKU Number (view only) Processor Type (view only) Processor Speed (view only) System ROM (view only) Cache Size...
Page 16: Computer Setup-Main
Computer Setup—Main NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-3 Computer Setup—Main Option Description Date (mm:dd:yy) Allows you to set system date. Time (hh:mm:ss) Allows you to set system time. SATA Port 1 For each, allows you to: ●...
Page 17: Computer Setup-Advanced
Table 2-3 Computer Setup—Main (continued) Halt On Allows you to set POST error behavior to: ● All Errors ● No Errors ● All, but Keyboard POST Delay Allows you to set a POST delay to: ● 0 seconds ● 5 seconds ●...
Page 18 Table 2-4 Computer Setup—Advanced (continued) ● 2F8/IRQ3 ● 3E8/IRQ4 ● 2E8/IRQ3 Onboard Parallel Port Allows you to select a setting for the onboard parallel port: ● Disabled ● 378/IRQ7 ● 278/IRQ5 ● 3BC/IRQ7 Parallel Port Mode Allows you to select parallel port mode: ●...
Page 19: Computer Setup-Boot
Computer Setup—Boot NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-5 Computer Setup—Boot Option Description Device Boot Disabling Allows disabling of bootable device groups. Choose from: ● None ● ● Internal ODD ● Internal FDD ●...
Page 20: Computer Setup-Pc Health
Table 2-5 Computer Setup—Boot (continued) Security Option Allows you to set the security option to Setup or System so that the password is required every time the system boots or only when entering Computer Setup. BIOS Write Protection Enables/disables to prevent the BIOS from being updated. Computer Setup—PC Health NOTE: Support for specific Computer Setup options may vary depending on the hardware...
Page 21: Recovering The Configuration Settings
Recovering the Configuration Settings Recovering the configuration settings established in the Computer Setup (F10) Utility requires that you first back up the settings before a recovery is needed. The CMOS Save/Load utility can be found at http://www.hp.com under the Software & Driver Downloads for your specific model.
Page 22: Hp Insight Diagnostics
Select Create a set of recovery discs (Recommended) and click Next. Follow the instructions in the wizard to create a Recovery Disc Set. Use Windows Explorer to search the Recovery Disc Set for the CD with the compaq\hpdiags directory. While the computer is on, insert the CD into an optical drive on the computer.
Page 23: Survey Tab
Shut down the operating system and turn off the computer. Turn on the computer. The system will boot to the CD. NOTE: If the system does not boot to the CD in the optical drive, you may need to change the boot order in the Computer Setup (F10) utility so that the system attempts to boot to the optical drive before booting to the hard drive.
Page 24: Test Tab
Test Tab The Test tab allows you to choose various parts of the system to test. You can also choose the type of test and testing mode. There are three types of tests to choose from: ● Quick Test—Provides a predetermined script where a sample of each hardware component is exercised and requires no user intervention in either Unattended or Interactive mode.
Page 25: Log Tab
After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without having to re-enter the data in the Test tab. The Status tab also shows: ●...
Page 26: Saving And Printing Information In Hp Insight Diagnostics
Saving and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen.
Page 27: Hp Backup And Recovery Manager
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually.
Page 28: Desktop Management
Desktop Management Desktop Management Overview HP Client Management Solutions provides standards-based solutions for managing and controlling desktops, workstations, and notebook PCs in a networked environment. HP pioneered desktop manageability in 1995 with the introduction of the industry’s first fully manageable desktop personal computers.
Page 29: Initial Configuration And Deployment
Initial Configuration and Deployment The computer comes with a preinstalled system software image. After a brief software “unbundling” process, the computer is ready to use. You may prefer to replace the preinstalled software image with a customized set of system and application software.
Page 30: Remote System Installation
To install Altiris Deployment Solution Agent: Click Start. Click All Programs. For Windows Vista, click Install Altiris DAgent. For Windows XP, click Install Altiris AClient. Follow the onscreen instructions to set up and configure the Altiris client. The Altiris Deployment Solution Agent is a key infrastructure component for enabling the HP Client Foundation Suite and the Client Premium Suite.
Page 31: Remote System Installation
Remote System Installation Remote System Installation allows you to start and set up the system using the software and configuration information located on a network server by initiating the Preboot Execution Environment (PXE). The Remote System Installation feature is usually used as a system setup and configuration tool, and can be used for the following tasks: ●...
Page 32: Hp System Software Manager
With the HP Client Management Interface (HP CMI), new HP business computers seamlessly integrate into your managed IT environment. HP CMI provides an interface that simplifies the integration of HP business computers with popular industry system management tools (including Microsoft Systems Management Server, IBM Tivoli Software, and HP OpenView Operations) and custom inhouse developed management applications.
Page 33: Hp Client Manager
NOTE: SSM does not currently support remote ROM flash on systems that have Windows Vista BitLocker enabled and are using TPM measurements to protect the BitLocker keys because flashing the BIOS would invalidate the trust signature that BitLocker created for the platform. Disable BitLocker via Group Policy in order to flash the system BIOS.
Page 34: Hp Protecttools Security Manager
HP ProtectTools Security Manager ProtectTools Security Manager software provides security features that help protect against unauthorized access to the computer, networks, and critical data. Enhanced security functionality is provided by the following modules: ● Smart Card Security for ProtectTools ● Embedded Security for ProtectTools ●...
Page 35: Hp Openview Client Configuration Manager
HP OpenView Client Configuration Manager NOTE: HP OpenView Client Configuration Manager is not currently available for Windows Vista. HP OpenView Client Configuration Manager is a hardware and software management solution for Windows XP and HP Thin Client environments that is easy to use and quick to deploy, while providing a strong foundation for future requirements.
Page 36: Hp Backup And Recovery Manager
System Management Server management infrastructure. The HP Client Catalog for SMS contains software driver and patch information for desktop, mobile and workstation platforms. With SMS 2003 R2 and Inventory Tool for Custom Updates, organizations can integrate and deploy HP software updates quickly and easily, based on detailed platform characteristics that the HP Client Catalog for SMS provides to target appropriate client systems within the managed enterprise.
Page 37: Intel Vpro-Branded Pcs With Active Management Technology
Intel vPro-branded PCs with Active Management Technology Intel Active Management Technology (AMT) allows better discovery, healing, and protection of networked computing assets. With AMT, PCs can be managed whether the system is on, off, or the operating system is hung. Intel vPro features include: ●...
Page 38: Hp Proactive Change Notification
◦ ME Features Control—enable AMT, ASF, or none ◦ ME Power Control—configure management engine power policies ● Intel AMT Configuration ◦ Change AMT Password—required in order to configure AMT (the default password is admin) ◦ Host Name—allows administrator to assign a name to the client ◦...
Page 39: Retired Solutions
Subscriber’s Choice Driver and Support Alerts/Notifications will deliver e-mails notifying you that the information you subscribed to in your profile is available for review and retrieval. To learn more about Subscriber’s Choice and create a custom profile, visit http://h30046.www3.hp.com/subhub.php. Retired Solutions Two software packages, Altiris Local Recovery, and Dantz Retrospect, will no longer be shipping on HP business desktops, notebooks, or workstations.
Page 40: Replicating The Setup
incomplete. This would render the system BIOS unusable. The Boot Block is a flash-protected section of the ROM that contains code that checks for a valid system BIOS image when the system is turned ● If the system BIOS image is valid, the system starts normally. ●...
Page 41: Copying To Multiple Computers
Turn on the computer. As soon as the computer is turned on, press when the monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if necessary. NOTE: If you do not press at the appropriate time, you must restart the computer and again press when the monitor light turns green to access the utility.
Page 42: Creating A Bootable Device
Supported devices have a preinstalled image to simplify the process of making them bootable. All HP or Compaq and most other USB flash media devices have this preinstalled image. If the USB flash media device being used does not have this image, use the procedure later in this section (see...
Page 43: Unsupported Usb Flash Media Device
CAUTION: If a drive does not match the USB flash media device, do not proceed. Data loss can occur. Check all USB ports for additional storage devices. If any are found, remove them, reboot the computer, and proceed from step 4. If none are found, either the system does not support the USB flash media device or the USB flash media device is defective.
Page 44 CAUTION: Some older PCs may not be bootable from a USB flash media device. If the default boot order in the Computer 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. If there are any PCI cards in the system that have SCSI, ATA RAID or SATA drives attached, turn off the computer and unplug the power cord.
Page 45: Dual-State Power Button
NOTE: 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 (F10) Utility Guide on the Documentation and Diagnostics CD for instructions. If you have used a DOS version from Windows 9x, you may see a brief Windows logo screen. If you do not want this screen, add a zero-length file named LOGO.SYS to the root directory of the USB flash media device.
Page 46: Industry Standards
Industry Standards HP management solutions integrate with other systems management applications, and are based on industry standards, such as: ● Web-Based Enterprise Management (WBEM) ● Windows Management Interface (WMI) ● Wake on LAN Technology ● ACPI ● SMBIOS ● Pre-boot Execution (PXE) support Asset Tracking and Security Asset tracking features incorporated into the computer provide key asset tracking data that can be managed using HP Systems Insight Manager, HP Client Manager, HP OpenView PC Configuration...
Page 47 Table 4-1 Security Features Overview Option Description Setup Password Allows you to set and enable setup (administrator) password. NOTE: If the setup password is set, it is required to change Computer Setup options, flash the ROM, and make changes to certain plug and play settings under Windows.
Page 48: Password Security
Table 4-1 Security Features Overview (continued) Option Description Keyboard locale setting (for example, English or German) for System ID entry. DriveLock (some models) Allows you to assign or modify a master or user password for ATA hard drives. When this feature is enabled, the user is prompted to provide one of the DriveLock passwords during POST.
Page 49: Entering A Power-On Password
on Warm Boot. When Password Prompt on Warm Boot is enabled, the password must also be entered each time the computer is rebooted. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. As soon as the computer is turned on, press when the monitor light turns green to enter Computer Setup.
Page 50: Changing A Power-On Or Setup Password
Changing a Power-On or Setup Password If the system is equipped with an embedded security device, refer to the HP ProtectTools Security Manager Guide at http://www.hp.com. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart the Computer.
Page 51: National Keyboard Delimiter Characters
National Keyboard Delimiter Characters Each keyboard is designed to meet country-specific requirements. The syntax and keys that you use to change or delete the password depend on the keyboard that came with the computer. National Keyboard Delimiter Characters Arabic Greek Russian Belgian Hebrew...
Page 52: Drivelock Applications
DriveLock. Since the initial configuration of DriveLock is typically performed by a system administrator, a master password should be set first. HP encourages system administrators to set a master password whether they plan to enable DriveLock or keep it disabled. This will give the administrator the ability to modify DriveLock settings if the drive is locked in the future.
Page 53: Setting The Smart Cover Sensor Protection Level
Table 4-2 Smart Cover Sensor Protection Levels (continued) Level Setting Description Level 2 Setup Password When the computer is restarted, the screen displays a message indicating that the computer cover or side panel has been removed. You must enter the setup password to continue. NOTE: These settings can be changed using Computer Setup.
Page 54: Unlocking The Smart Cover Lock
Unlocking the Smart Cover Lock Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. As soon as the computer is turned on, press when the monitor light turns green to enter Computer Setup.
Page 55: Fault Notification And Recovery
Fault Notification and Recovery Fault Notification and Recovery features combine innovative hardware and software technology to prevent the loss of critical data and minimize unplanned downtime. If the computer is connected to a network managed by HP Client Manager, the computer sends a fault notice to the network management application.
Page 56: Serial Ata (Sata) Drive Guidelines And Features
Serial ATA (SATA) Drive Guidelines and Features NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA (PATA) drives are supported. SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable Number of pins in power cable Maximum data cable length 39.37 in (100 cm)
Page 57: Hard Drive Capacities
impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert. Hard Drive Capacities The combination of the file system and the operating system used in the computer determines the maximum usable size of a drive partition.
Page 58: Identifying The Chassis, Routine Care, And Disassembly Preparation
Identifying the Chassis, Routine Care, and Disassembly Preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. CAUTION: When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 59: Small Form Factor (Sff)
Small Form Factor (SFF) Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle.
Page 60: Preventing Electrostatic Damage To Equipment
Packing PCBs in foam-lined box 5,000 V 11,000 V 21,000 V *These are then multi-packaged inside plastic tubes, trays, or Styrofoam. NOTE: 700 volts can degrade a product. Preventing Electrostatic Damage to Equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity.
Page 61: Grounding The Work Area
Grounding the Work Area To prevent static damage at the work area, use the following precautions: ● Cover the work surface with approved static-dissipative material. Provide a wrist strap connected to the work surface and properly grounded tools and equipment. ●...
Page 62: Operating Guidelines
Operating Guidelines To prevent overheating and to help prolong the life of the computer: ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
Page 63: Cleaning The Keyboard
To clean the computer case, follow the procedures described below: ● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab. ● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water.
Page 64: Cleaning The Mouse
Cleaning the Mouse Before cleaning the mouse, ensure that the power to the computer is turned off. ● Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly. ●...
Page 65: Cables And Connectors
Cables and Connectors Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
Page 66: Removal And Replacement Procedures Microtower (Mt) Chassis
Removal and Replacement Procedures Microtower (MT) 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 operate properly. NOTE: Not all features listed in this guide are available on all computers.
Page 67: Access Panel
Access Panel Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the two screws that secure the access panel to the computer chassis (1). Slide the access panel back about 1.25 cm (1/2 inch), and then lift it away from and off the unit (2). To replace the access panel, reverse the removal steps.
Page 68: Front Bezel
Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Pull outward on all three tabs on the left side of the bezel (1) then rotate the bezel off the chassis (2), beginning with the left side then the right side.
Page 69: Bezel Blanks
Bezel Blanks Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Remove the front bezel (Front Bezel on page 58). 5.25-inch Drive Bezel Blank While facing the inside of the front bezel, press the two retaining tabs on the right toward the outer edge of the bezel (1) and pull the bezel blank inward (2) to remove it.
Page 70: Inch Drive Bezel Blank
3.5-inch Drive Bezel Blank While facing the inside of the front bezel, press outward on the retaining tabs on each side of the bezel blank (1) and pull the bezel blank inward to remove it. NOTE: To install a 3.5-inch bezel blank, press the blank inward from the inside of the front bezel so that it snaps into place.
Page 71: Memory
Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). CAUTION: DDR and DDR2 memory modules are not interchangeable. DDR2-SDRAM DIMMs The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Page 72 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Begin by installing a module into the socket nearest the pre-installed module, and install the modules following the numerical order of the sockets. NOTE: A memory module can be installed in only one way.
Page 73: Expansion Cards
Expansion Cards The computer has one standard PCI expansion slot that can accommodate an expansion card up to 17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot. Prepare the computer for disassembly (Preparation for Disassembly on page 56).
Page 74 Hold the expansion card just above the expansion socket on the system board then move the card toward the rear of the chassis so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board. NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot.
Page 75: Cable Management
Cable Management Always follow good cable management practices when working inside the computer. ● Keep cables away from major heat sources like the heatsink. ● Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
Page 76: Cable Connections
Cable Connections Cable Cable Designator Power Supply System board, 24-pin Power Supply CPU power, 4-pin Power Supply Not used Power Supply Not used Power Supply 2nd SATA hard drive Power Supply 1st SATA hard drive Power Supply Diskette drive Power Supply 1st Optical drive Power Supply 2nd Optical drive...
Page 77: Drives
Drives The computer supports up to five 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. Drive Positions External 5.25-inch half-height optical drive bay External 5.25-inch half-height option drive bay...
Page 78: System Board Drive Connections
System Board Drive Connections Follow the guidelines in the illustration and table below when connecting drives to the system board. Drive Configuration System Board Connectors 1 hard drive primary hard drive: (1) SATA1 1 optical drive optical drive: (2) SATA2 1 hard drive primary hard drive: (1) SATA1 2 optical drives...
Page 79: 5.25-Inch Drive
5.25-inch Drive Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Remove the front bezel (Front Bezel on page 58). Disconnect the power and data cables from the back of the drive. Remove the two retainer screws that secure the drive to the bay (1), and then slide the drive forward and out of the bay (2).
Page 80: Inch Drive
3.5-inch Drive The 3.5-inch external drive bay may be populated with a diskette drive or a media card reader. The removal procedure is the same for both devices. Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Remove the front bezel (Front Bezel on page...
Page 81: 3.5-Inch Hard Drive
3.5-inch Hard Drive Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Disconnect the power and data cables from the back the drive. Remove the four retaining screws that secure the drive to the bay (1). Slide the drive back and out of the bay (2).
Page 82: Readyboost Card
ReadyBoost Card A ReadyBoost card is installed in the computer. The card is secured to the chassis, and a cable connects the card to the system board. Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57).
Page 83: Front I/O Panel Housing Assembly
Front I/O Panel Housing Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on (Access Panel on page Remove the front bezel (Front Bezel on page...
Page 84: Power Switch Assembly
Power Switch Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Remove the front bezel (Front Bezel on page 58). Disconnect the braided cables from the system board. Free the braided cables from the cable tie that is attached to the chassis.
Page 85: Speaker
Speaker Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Remove the front bezel (Front Bezel on page 58). Disconnect the speaker cable from the system board. Free the cable from the cable tie that is attached to the chassis. Remove the screw that secures the speaker to the inside of the chassis (1), and then remove the speaker by sliding it toward the bottom of the chassis and out of the retaining clips (2).
Page 86: Second Serial Port
Second Serial Port Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Disconnect the serial port cable from the system board. Disconnect the serial port cable from the clip (1) mounted on the inside of the chassis. Remove the two hex nuts from the outside of the chassis that secure the serial port to the chassis (2), and then remove the serial port.
Page 87: System Fan
System Fan Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel (Access Panel on page 57). Disconnect the cable that connects the system fan to the system board. Remove the two screws that secure the fan to the chassis (1), and then remove the fan from the chassis (2).
Page 88: Heatsink
Heatsink Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel and lay the computer down on its side to make it easier to work on (Access Panel on page 57). Disconnect the heatsink control cable from the system board. Loosen the four captive screws that secure the heatsink to the system board (1).
Page 89: Processor
Processor Prepare the computer for disassembly (Preparation for Disassembly on page 56). Remove the access panel and lay the computer down on its side to make it easier to work on (Access Panel on page 57). Disconnect the heatsink control cable from the system board and remove the heatsink Heatsink on page 78).
Page 90: System Board
Go to step 7. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. Secure the heatsink to the system board and system board tray with the 4 captive screws and attach the heatsink control cable to the system board.
Page 91: Battery
Do not attempt to recharge the battery. Do not expose to temperatures higher than 60°C (140°F) Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water. Replace the battery only with the HP/Compaq spare designated for this product. Battery...
Page 92: Type 1 Battery Holder
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 up the CMOS settings. NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general household waste.
Page 93: Type 3 Battery Holder
To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up (2). Push the other edge down until the clamp snaps over the other edge of the battery. Replace the computer access panel. Plug in the computer and turn on power to the computer.
Page 94: Power Supply
Power Supply WARNING! Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer. Prepare the computer for disassembly (Preparation for Disassembly on page 56).
Page 95 Remove the four screws (1) that secure the power supply to the chassis. Slide the power supply toward the front of the computer, then lift it out of the computer. To install the power supply, reverse the removal procedure. NOTE: When attaching the CPU power cable to the system board, use the tie-wrap provided in the spares kit to secure the cable to the lower right corner of the fan cage.
Page 96: Installing A Security Lock
Installing a Security Lock An optional security lock can be installed on the rear panel of the computer to provide physical computer security. NOTE: The security lock slot may be in a different location on your computer model. Chapter 7 Removal and Replacement Procedures Microtower (MT) Chassis...
Page 97: Removal And Replacement Procedures Small Form Factor (Sff) Chassis
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 operate properly. NOTE: Not all features listed in this guide are available on all computers.
Page 98: Access Panel
Access Panel Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the two screws that secure the access panel to the computer chassis (1). Slide the access panel back about 1.25 cm (1/2 inch), then lift it away from and off the unit (2). To install the access panel, reverse the removal procedure.
Page 99: Front Bezel
Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Pull up on each of the three tabs on the top of the bezel (1) to release them, and then rotate the bezel down and off the chassis (2).
Page 100: Bezel Blanks
Bezel Blanks Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the front bezel (Front Bezel on page 89). 5.25-inch Drive Bezel Blank If the computer was not shipped with a drive in the 5.25-inch option bay, the bay will be covered by a bezel blank.
Page 101: Cable Management
Cable Management The Small Form Factor 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 cables away from major heat sources like the heatsink. ●...
Page 102: Cable Connections
Cable Connections System board connectors are color-coded to make it easier to find the proper connection. Cable Cable Designator Power Supply Main power, 24-pin Power Supply CPU power, 4-pin Power Supply SATA Hard drive Power Supply SATA Optical drive Power Supply Diskette drive Cable PCA Designator...
Page 103: Drives
Drives A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Drive Positions External 3.5-inch option drive bay for media card reader or diskette drive Internal 3.5-inch bay for hard drive External 5.25-inch optical drive bay To verify the type and size of the storage device installed in the computer, run Computer Setup.
Page 104: System Board Drive Connections
System Board Drive Connections Follow the guidelines in the illustration and table below when connecting drives to the system board. Drive Configuration System Board Connectors 1 hard drive (1) SATA1 hard drive 1 optical drive (2) SATA2 optical drive media card reader (3) USB connector (white) diskette drive (4) FDD connector (black)
Page 105: Optical Drive
Optical Drive CAUTION: All removable media should be taken out of the drive before removing the drive from the computer. NOTE: An optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD+R/RW, or CD-RW/DVD Combo drive. Prepare the computer for disassembly (Preparation for Disassembly on page 87).
Page 106: External 3.5-Inch Media Card Reader Or Diskette Drive
Remove the two retainer screws that secure the drive to the bay (1), and then slide the drive forward and out of the bay (2). NOTE: When replacing the drive, transfer the guide screws from the old drive to the new one. To install a drive, reverse the removal procedure.
Page 107: Hard Drive
Rotate the drive cage to the upright position. If the device is a media card reader, disconnect the internal USB cable from the system board. If the device is a diskette drive, disconnect the power and data cables from the back of the drive. Remove the two retainer screws that secure the drive to the bay (1), and then slide the drive forward and out of the bay (2).
Page 108 CAUTION: To prevent loss of work and damage to the computer or drive: Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. Handle a drive carefully; do not drop it. Do not use excessive force when inserting a drive.
Page 109: Memory
Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). CAUTION: DDR and DDR2 memory modules are not interchangeable. DDR2-SDRAM DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
Page 110 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. Push the module down into the socket, ensuring that the module is fully inserted and properly seated.
Page 111: Expansion Card
Expansion Card Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Move the serial port cable off the slot cover. On the rear panel of the computer lift the slot cover latch (1), and then rotate slot cover up and away from the slots (2).
Page 112 Hold the expansion card just above the expansion socket on the system board then move the card toward the rear of the chassis so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board. NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot.
Page 113: Serial Port
Serial Port Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the cable from the clips on top of the power supply (1). Remove the two hex nuts that secure the port to the chassis (2), and then remove the serial port from the chassis (3).
Page 114: Readyboost Card
ReadyBoost Card A ReadyBoost card is installed in the computer. The card is secured to the chassis, and a cable connects the card to the system board. Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88).
Page 115: Plastic Wire/Cable Fastener And Clips
Plastic Wire/Cable Fastener and Clips Two different plastic wire fasteners under the drive cage secure many of the system wires. You have to loosen these fasteners to gain access to the wires for several computer components. Additionally, many wires are routed through clips below the drive cage and on the power supply. See the following illustration for proper routing of these wires.
Page 116: Front I/O Device
To close the fastener, reverse the loosening procedure. Front I/O Device Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the front bezel (Front Bezel on page 89). Rotate the drive cage to its upright position.
Page 117: Power Switch Assembly
Power Switch Assembly Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the front bezel (Front Bezel on page 89). Rotate the drive cage to its upright position. Disconnect the power switch wires from the system board.
Page 118: Speaker
Speaker Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Rotate the drive cage to its upright position. Loosen the plastic fastener to gain access to the speaker wire. Disconnect the speaker wire from the system board.
Page 119: Heatsink
Heatsink Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Unplug the fan wire from the system board. Loosen the four captive screws (1) that secure the heatsink to the system board tray. CAUTION: Heatsink retaining screws should be removed in diagonally opposite pairs (as in an X) to even the downward forces on the processor.
Page 120: Heatsink Fan
Heatsink Fan Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the heatsink (Heatsink on page 109). Disconnect the heatsink fan cable from the system board. Remove the four screws that secure the fan to the front of the heatsink (1), and then remove the fan from the heatsink (2).
Page 121: Processor
Processor Prepare the computer for disassembly (Preparation for Disassembly on page 87). Remove the access panel (Access Panel on page 88). Remove the heatsink (Heatsink on page 109). Raise the locking lever to its fully open position (1). Raise and rotate the microprocessor retainer to its fully open position (2). Carefully lift the processor from the socket (3).
Page 122: Power Supply
Go to step 7. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. Secure the heatsink to the system board and system board tray with the four captive screws and attach the heatsink control cable to the system board.
Page 123: System Board
Slide the power supply about 1.25 cm (1/2-inch) toward the front of the chassis (2), rotate the power supply toward the heatsink so it clears the lip at the top of the chassis (3), and then lift the power supply out of the chassis (4). To install the system board, reverse the removal procedure.
Page 124 Remove the eight screws that secure the system board to the chassis (1), slide the board about 1.25 cm (1/2 inch) toward the front of the chassis (2), and then lift the board out of the chassis (3). To install the system board, reverse the removal procedure. CAUTION: Before reinstalling the heatsink you must clean the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the spares kit.
Page 125: Battery
Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket.
Page 126: Type 1 Battery Holder
Type 1 Battery Holder Lift the battery out of its holder. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Replace the computer access panel. Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup.
Page 127: Type 3 Battery Holder
Plug in the computer and turn on power to the computer. Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Type 3 Battery Holder Pull back on the clip (1) that holds the battery in place, then remove the battery (2). Insert the new battery and position the clip back in place.
Page 128: Installing A Security Lock
Installing a Security Lock An optional security lock can be installed on the rear panel of the computer to provide physical computer security. NOTE: The security lock slot may be in a different location on your computer model. 118 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis...
Page 129: Appendix A Connector Pin Assignments
Connector Pin Assignments This appendix contains the pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced. Keyboard Connector and Icon Signal Data Unused Ground +5 VDC Clock Unused Mouse Connector and Icon Signal...
Page 130: Ethernet Rj-45
Ethernet RJ-45 Connector and Icon Signal (+) Transmit Data (-) Transmit Data (+) Receive Data Unused Unused (-) Receive Data Unused Unused Ethernet AUI Connector and Icon Signal Signal Ground Positive AUI Differential Receive Negative AUI Differential Collision +12V Positive AUI Differential Collision Ground Negative AUI Differential Transmit Ground...
Page 131: Parallel Interface
Parallel Interface Connector and Icon Signal Signal Strobe Acknowledge Data Bit 0 Busy Data Bit 1 Paper End Data Bit 2 Select Data Bit 3 Auto Linefeed Data Bit 4 Error Data Bit 5 Initialize Printer Data Bit 6 Select IN Data Bit 7 18–25 Signal Ground...
Page 132: Usb
Connector and Icon Signal +5 VDC - Data + Data Ground Diskette Drive Power Connector and Icon Signal +5 VDC Ground Ground Reserved (+12 Volts) Microphone Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_left 1 2 3 2 (Ring) Audio_Right 3 (Shield) Ground...
Page 133: Line-Out Audio
Line-out Audio Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_Out_Left 1 2 3 2 (Ring) Audio_Out_Right 3 (Shield) Ground External Infrared Transceiver Connector and Icon Signal Transmit Receive Ground Mode Not Used Not Used Not Used Monitor Connector and Icon Signal Signal Red Analog...
Page 134: Diskette Drive Standard Data Cable
Diskette Drive Standard Data Cable Connector Signal Signal Signal Ground Ground Ground Low density Reserved Track 00 Ground Ground Media — ID Motor On Write Protect Ground Ground Ground No Signal Direction In Read Data Ground Ground Ground Index Step Side 1 Select Ground Ground...
Page 135: 24-Pin Microfit Power
24-Pin MicroFit Power Connector Front Signal Signal Signal Signal +5 Vaux PWRGD +12V +3.3V +5V Sense +3.3V +3.3V Sense Tach +3.3V PS_ON +3.3V Fan-CMD +3.3V -12V 4-Pin Power (for CPU) Connector and Icon Signal +12V CPU -12V CPU 6-Pin Power (for CPU) Connector and Icon Signal 12V CPU...
Page 136: Sata Data And Power
SATA Data and Power Drive Connector Signal Signal Signal Signal Ground Ground Ground Ground V 3.3 V 3.3 Ground Ground Ground Reserved Ground V 12 V 12 *S = Data, P = Power PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Signal Signal...
Page 137: Pci Express
PERp8 PERn9 PERp13 PERN8 PERp12 PERn13 PERp11 PERn12 PERp10 PERn11 PERp14 PERn15 PERn14 PERp15 Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express x1, x4, x8, and x16 PCI Express Connector...
Page 138: Dvi Connector
PETn8 PETp12 PETn13 PETp11 PETn12 PETp10 PETn11 PETp9 PETn10 PETp14 PETn9 PETp13 PETn14 PRSNT2# RSVD PETp15 PETn15 Pin B information is on the next page NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 DVI Connector Connector and Icon...
Page 139: Appendix B Power Cord Set Requirements
Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Page 140: Country-Specific Requirements
Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) Austria (1) Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) Sweden (1) SEMKO Denmark (1) DEMKO...
Page 141: Appendix C Post Error Messages
POST Error Messages This appendix lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most system messages during POST, such as memory count and non-error text messages.
Page 142: Post Numeric Codes And Text Messages
POST Numeric Codes and Text Messages This section covers those POST errors that have numeric codes associated with them. The section also includes some text messages that may be encountered during POST. NOTE: The computer will beep once after a POST text message is displayed on the screen. Table C-1 Numeric Codes and Text Messages Control panel message...
Page 143 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action contact an authorized dealer or reseller for RTC battery replacement. 163-Time & Date Not Set CMOS jumper may not be properly installed. Check for proper placement of the CMOS jumper if applicable.
Page 144 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 303-Keyboard Controller Error I/O board keyboard controller. Reconnect keyboard with computer turned off. Replace the system board. 304-Keyboard or System Unit Error Keyboard failure. Reconnect the keyboard with computer turned off.
Page 145 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action Replace diskette drive. Replace the system board. 605-Diskette Drive Type Error Mismatch in drive type. Run Computer Setup. Disconnect any other diskette controller devices (tape drives). Clear CMOS.
Page 146 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 1720-SMART Hard Drive Detects Imminent Hard drive is about to fail. (Some hard drives Determine if hard drive is giving correct Failure have a hard drive firmware patch that will fix error message.
Page 147 Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 2202-PMM Deallocation Error during MEBx Memory error during POST execution of the Reboot the computer. cleanup Management Engine (ME) BIOS Extensions Unplug the power cord, re-seat the option ROM memory modules, and reboot the computer.
Page 148: Interpreting Post Diagnostic Front Panel Leds And Audible Codes
Table C-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities. System will not boot without fan CPU fan not installed or disconnected in Remove the computer cover, press the VSFF chassis.
Page 149 Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes three Processor not installed Check to see that the processor is present. times, once every second, (not an indicator of bad Reseat the processor.
Page 150 Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action iteration but LEDs continue until problem is solved. Red Power LED flashes eight Invalid ROM based on bad Reflash the system ROM with the latest BIOS times, once every second, checksum.
Page 151 Table C-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Check that both power supply cables are properly connected to the system board. Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button harness.
Page 152: Appendix D Troubleshooting Without Diagnostics
Troubleshooting Without Diagnostics This chapter provides information on how to identify and correct minor problems, such as diskette drive, hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions. NOTE: For information on specific error messages that may appear on the screen during Power-On Self-Test (POST) at startup, refer to...
Page 153: Helpful Hints
● Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting the operating system, use “Last Known Configuration.” ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to the following Helpful Hints on page 143 section in this guide.
Page 154 ● Check all cable connections for loose connections or incorrect connections. ● Wake the computer by pressing any key on the keyboard or pressing the power button. If the system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer.
Page 155: Solving General Problems
Solving General Problems You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 156 Table D-1 Solving General Problems (continued) There is no sound or sound volume is too low. Cause Solution System volume may be set low or muted. Check the F10 BIOS settings to make sure the internal system speaker is not muted (this setting does not affect the external speakers).
Page 157 Table D-1 Solving General Problems (continued) Poor performance is experienced. Cause Solution (Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, uncheck applications that you do not want to launch automatically. Some software applications, especially games, are stressful Lower the display resolution for the current application or on the graphics subsystem consult the documentation that came with the application...
Page 158: Solving Power Problems
Table D-1 Solving General Problems (continued) System does not power on and the LEDs on the front of the computer are not flashing. Cause Solution Check that both power supply cables are properly connected to the system board. Check to see if the 5V_aux light on the system board is turned on.
Page 159: Solving Diskette Problems
Table D-2 Solving Power Problems (continued) Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Power failure (power supply is overloaded). Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage.
Page 160 Table D-3 Solving Diskette Problems (continued) Drive not found. Cause Solution Cable is loose. Reseat diskette drive data and power cable. Removable drive is not seated properly. Reseat the drive. The device has been hidden in Computer Setup. Run the Computer Setup utility and ensure Device Available is selected for the Legacy Diskette in Security >...
Page 161 Table D-3 Solving Diskette Problems (continued) A problem has occurred with a disk transaction. Cause Solution The directory structure is bad, or there is a problem with a file. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error- checking, click Check Now.
Page 162: Solving Hard Drive Problems
Solving Hard Drive Problems Table D-4 Solving Hard Drive Problems Hard drive error occurs. Cause Solution Hard disk has bad sectors or has failed. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools.
Page 163 Table D-4 Solving Hard Drive Problems (continued) Nonsystem disk/NTLDR missing message. Cause Solution The system is trying to start from a diskette that is not bootable. Remove the diskette from the diskette drive. The system is trying to start from the hard drive but the hard Insert a bootable diskette into the diskette drive and drive may have been damaged.
Page 164: Solving Media Card Reader Problems
Table D-4 Solving Hard Drive Problems (continued) Computer seems to be locked up. Cause Solution off the power. To restart the computer, press the power button again. The removable hard drive has no power to the hard drive enclosure. Cause Solution The lock on the enclosure is not turned to the “ON”...
Page 165 Table D-5 Solving Media Card Reader Problems (continued) A write-protected or locked error occurs when attempting to write to the media card. Cause Solution Media card is locked. Locking the media card is a safety feature If using an SD card, make sure that the lock tab located on the that prevents writing to and deleting from an SD/Memory Stick/ right of the SD card is not in the locked position.
Page 166: Solving Display Problems
Solving Display Problems If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table. Table D-6 Solving Display Problems Blank screen (no video). Cause Solution Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Page 167 Table D-6 Solving Display Problems (continued) Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Pre-video memory error.
Page 168 Table D-6 Solving Display Problems (continued) Blurry video or requested resolution cannot be set. Cause Solution If the graphics controller was upgraded, the correct graphics Install the video drivers included in the upgrade kit. drivers may not be loaded. Monitor is not capable of displaying requested resolution. Change requested resolution.
Page 169: Solving Audio Problems
Table D-6 Solving Display Problems (continued) Vibrating or rattling noise coming from inside a CRT monitor when powered on. Cause Solution Monitor degaussing coil has been activated. None. It is normal for the degaussing coil to be activated when the monitor is powered on. Clicking noise coming from inside a CRT monitor.
Page 170 Table D-7 Solving Audio Problems Sound cuts in and out. Cause Solution Processor resources are being used by other open Shut down all open processor-intensive applications. applications. Direct sound latency, common in many media player In Windows XP only: applications. From the Control Panel, select Sounds and Audio Devices.
Page 171: Solving Printer Problems
Table D-7 Solving Audio Problems (continued) Sound from headphones is not clear or muffled. Cause Solution Headphones are plugged into the rear audio output connector. Plug the headphones into the headphone connector on the The rear audio output connector is for powered audio devices front of the computer.
Page 172: Solving Keyboard And Mouse Problems
Table D-8 Solving Printer Problems (continued) Printer prints garbled information. Cause Solution The correct printer driver for the application is not installed. Install the correct printer driver for the application. The cables may not be connected properly. Reconnect all cables. Printer memory may be overloaded.
Page 173: Solving Hardware Installation Problems
Table D-9 Solving Keyboard Problems (continued) Cursor will not move using the arrow keys on the keypad. Cause Solution Num Lock key may be on. Press the Num Lock key. The Num Lock light should not be on if you want to use the arrow keys.
Page 174 device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board.
Page 175: Solving Network Problems
Table D-11 Solving Hardware Installation Problems (continued) Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module.
Page 176 Table D-12 Solving Network Problems Wake-on-LAN feature is not functioning. Cause Solution Wake-on-LAN is not enabled. To enable Wake-on-LAN in Windows XP: Select Start > Control Panel. Double-click Network Connections. Double-click Local Area Connection. Click Properties. Click Configure. Click the Power Management tab, then select the check box to Allow this device to bring the computer out of standby.
Page 177 Table D-12 Solving Network Problems (continued) Network status link light never flashes. NOTE: The network status light is supposed to flash when there is network activity. Cause Solution Network controller is not set up properly. Check for the device status within Windows, such as Device Manager for driver load and the Network Connections applet within Windows for link status.
Page 178: Solving Memory Problems
Table D-12 Solving Network Problems (continued) Network controller stopped working when an expansion board was added to the computer. Cause Solution The network controller requires drivers. Verify that the drivers were not accidentally deleted when the drivers for a new expansion board were installed. The expansion board installed is a network card (NIC) and Under the Computer Setup Advanced menu, change the conflicts with the embedded NIC.
Page 179 CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module. For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory.
Page 180: Solving Processor Problems
Table D-13 Solving Memory Problems (continued) Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution Memory is installed incorrectly or is bad. Reseat DIMMs.
Page 181 Table D-15 Solving CD-ROM and DVD Problems System will not boot from CD-ROM or DVD drive. Cause Solution The device is attached to a SATA port that has been hidden in Run the Computer Setup utility and ensure Device Available the Computer Setup utility.
Page 182 Table D-15 Solving CD-ROM and DVD Problems (continued) Movie will not play in the DVD drive. Cause Solution Movie rating locked out by parental lock. Use DVD software to remove parental lock. Media installed upside down. Reinstall media. Cannot eject compact disc (tray-load unit). Cause Solution Disc not properly seated in the drive.
Page 183: Solving Drive Key Problems
Solving Drive Key Problems If you encounter Drive Key problems, common causes and solutions are listed in the following table. Table D-16 Solving Drive Key Problems USB Drive Key is not seen as a drive letter in Windows. Cause Solution The drive letter after the last physical drive is not available.
Page 184: Solving Internet Access Problems
Table D-17 Solving Front Panel Component Problems A USB device, headphone, or microphone is not recognized by the computer. Cause Solution Device is not properly connected. Turn off the computer. Reconnect the device to the front of the computer and restart the computer.
Page 185 Table D-18 Solving Internet Access Problems (continued) Unable to connect to the Internet. Cause Solution IP address is not configured properly. Contact your ISP for the correct IP address. Cookies are corrupted. (A “cookie” is a small piece of Windows Vista information that a Web server can store temporarily with the Select Start >...
Page 186: Solving Software Problems
Table D-18 Solving Internet Access Problems (continued) Internet takes too long to download Web sites. Cause Solution Select Start > Control Panel. Click on System and Maintenance. Click on System. In the Tasks list, select Device Manager. Double-click Modems. Double-click Agere Systems PCI-SV92PP Soft Modem.
Page 187: Contacting Customer Support
Table D-19 Solving Software Problems (continued) “Illegal Operation has Occurred” error message is displayed. Cause Solution Software being used is not Microsoft-certified for your version Verify that the software is certified by Microsoft for your version of Windows. of Windows (see program packaging for this information). Configuration files are corrupt.
Page 188: Appendix E System Board And Riser Board Reference Designators
System Board and Riser Board Reference Designators These reference designators are used on most but not all HP system and riser boards. Designator Component Battery socket/Battery LED - 5V_Aux (on) Health-LED UID LED Power LED CR35 Hard drive activity LED Boot block header/jumper Boot block recovery header ROM recovery header...
Page 189 PCI extender slot (male) J31 - J35 PCI Express slots Primary SCSI connector Secondary SCSI connector Stacked parallel/SCSI connector AGP slot x16 PCI Express slot for graphics First parallel port Second parallel port Double-stacked parallel port, Top = Port B, Bottom = Port A Parallel port over single Serial Port Parallel port over Serial Port and Video Port Parallel port over dual VGA ports...
Page 190 JP49/E49 Clear password header/jumper USB front port choke (1st) USB rear port choke (1st) USB rear port choke (2nd) USB rear port choke (3rd) USB 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...
Page 191 Blade PC graphics connector (outboard) Blade PC graphics connector (inboard) Second serial port Primary serial port Double stack serial port, Top = Serial B, Bottom = Serial A Riser edge connector (male-mates with J30) PrimarySerial ATA (SATA) connector Second Serial ATA (SATA) connector Third Serial ATA (SATA) connector Fourth Serial ATA (SATA) connector VSFF expansion connector...
Page 192 SW50 Clear CMOS switch/push button Single chip solution (combined northbridge/southbridge) North bridge South bridge Super I/O Clock chip 64 bit Bridge LOM1 LOM1 EEPROM LOM1 PHY Audio Codec Audio amplifier LOM2 LOM2 EEPROM LOM2 PHY SPI ROM - SOIC-8 footprint Fan controller SPI ROM - SO16 footprint TMDS controller...
Page 193 Primary (TH) system clock crystal Secondary (SMT) system clock crystal Primary NIC clock crystal Secondary NIC clock crystal Y5/H5 RTC clock crystal/tie-down...
Page 194: Index
Index Symbols/Numerics audible codes 138 booting options 24-pin MicroFit power pin audio problems 159 Full Boot 131 assignments 125 Quick Boot 131 24-pin power pin backup 26 assignments 124 Backup and Recovery cable connections 3.5-inch Manager 2, 26 MT 66 MT drive bezel blank 60 battery SFF 92...
Page 195 Client Foundation Suite 24 drives front bezel Client Management Interface 21 MT removal and MT removal and Client Manager 23 replacement 67 replacement 58 Client Premium Suite 24 SFF removal and SFF removal and cloning tools, software 19 replacement 93 replacement 89 computer cleaning 52 dual-state power button 35...
Page 196 ProtectTools Security memory processor removal and Manager 24 MT removal and replacement 79 System Software Manager 22 replacement 61 ReadyBoost card removal and HP Backup and Recovery problems 168 replacement 72 Manager 26 SFF removal and second serial port removal and HP Drive Key replacement 99 replacement 76...
Page 197 plastic wire fastener network 165 MT processor 79 SFF removal and power 148 MT ReadyBoost card 72 replacement 105 printer 161 MT second serial port 76 POST error messages 131 processor 170 MT speaker 75 power button software 176 MT system board 80 configuring 35 processor SFF access panel 88...
Page 198 second serial port expansion card removal and Altiris AClient 19 MT removal and replacement 101 Altiris Deployment Solution replacement 76 external 3.5-inch media card Agent 19 security reader or diskette drive asset tracking 36 cable lock 44 removal and replacement 96 Drive Protection System 45 DriveLock 41 front bezel removal and...
Page 199 SATA connectors 46 Proactive Change SFF removal and Notification 28 replacement 113 Remote ROM Flash 29 system board drive connections replicating setup 32 MT 68 ROM Flash 29 SFF 94 software support 35 System Software Manager 22 Subscriber's Choice 29 Subscriber’s Choice 29 System Software Manager tamper-proof screws...

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Dc5700 - microtower pc Compaq dx7400

HP dx7400 - Microtower PC Service & Reference Manual

1 Installing and Customizing the Software

2 Computer Setup (F10) Utility

3 HP Insight Diagnostics

4 Desktop Management

5 Serial ATA (SATA) Drive Guidelines and Features

6 Identifying the Chassis, Routine Care, and Disassembly Preparation

7 Removal and Replacement Procedures Microtower (MT) Chassis

8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Appendix A Connector Pin Assignments

Appendix B Power Cord Set Requirements

Appendix C POST Error Messages

Appendix D Troubleshooting Without Diagnostics

Appendix E System Board and Riser Board Reference Designators

Index

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Summary of Contents for HP dx7400 - Microtower PC