HP 500B - Microtower PC Maintenance And Service Manual
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HP 500B - Microtower PC Maintenance And Service Manual

HP 500B - Microtower PC Maintenance And Service Manual

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Maintenance & Service Guide
Compaq 500B and 505B Minitower Business PC

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  • Page 1 Maintenance & Service Guide Compaq 500B and 505B Minitower Business PC...
  • Page 2 No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. Compaq 500B and 505B Minitower Business PC First Edition (September 2009) Document Part Number: 591882-001...

  • 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 Product Description Chassis Designations ........................... 1 Microtower (MT) ........................1 Product Description ..........................2 2 Removal and Replacement Procedures Microtower (MT) Chassis Preparation for Disassembly ........................ 3 Access Panel ............................4 Front Bezel ............................6 Memory ..............................8 DDR3-SDRAM DIMMs ......................
  • Page 6 Type 2 Battery Holder ......................48 Type 3 Battery Holder ......................48 Appendix A Computer (F10) Setup Model 500B — Computer Setup (F10) Utilities .................. 50 Using Computer Setup (F10) Utilities ................50 Computer Setup—Main ..................... 51 Computer Setup—Advanced ..................... 52 Computer Setup—Power ....................
  • Page 7 Solving CD-ROM and DVD Problems ....................78 Solving Front Panel Component Problems ..................79 Appendix D Connector Pin Assignments 4-Pin Power (for CPU) ........................80 Ethernet BNC ............................. 80 USB ..............................80 Microphone ............................81 Headphone ............................81 Line-in Audio ............................81 Line-out Audio ............................
  • Page 8 Hard Drive Capacities ........................94 Appendix G Power Cord Set Requirements General Requirements ........................95 Japanese Power Cord Requirements ....................95 Country-Specific Requirements ......................96 Appendix H Specifications Index ................................... 99 viii...

  • Page 9: Product Description

    Product Description Chassis Designations The following subsection illustrates the 500B and 505B chassis design. Microtower (MT) Chassis Designations...

  • Page 10: Product Description

    Product Description The Compaq 500B MT is based on Intel PCA and processor technology, whereas the Compaq 505B MT is based on AMD technology. The following table lists the notable features of the PCs. Compaq 500B MT features: ● Intel Core 2 Duo processors ●...

  • Page 11: 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 12: Access Panel

    Access Panel Prepare the computer for disassembly (Preparation for Disassembly on page Remove the side cover by loosening the screw that connects the cover to the computer. Figure 2-1 Removing the Computer Access Panel Grasp the handle on the side cover and pull towards the back of the computer. Slide the cover about 2.4 cm (1 inch) to remove it.
  • Page 13 Remove the side panel by lifting it away from the computer. Figure 2-3 Removing the Computer Access Panel To replace the access panel, reverse the removal steps. Access Panel...

  • Page 14: Front Bezel

    Front Bezel Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Pull each of the three side tabs that secure the front bezel to the computer, to release the front bezel. Figure 2-4 Removing the Front Bezel Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis...
  • Page 15 Swing the front bezel out to remove from the computer. Figure 2-5 Removing the Front Bezel NOTE: The appearance of the front bezel may vary. To reinstall the front bezel, reverse the removal procedure. Front Bezel...

  • Page 16: Memory

    Memory The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3- SDRAM) dual inline memory modules (DIMMs). DDR3-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. To achieve the maximum memory support, you can populate the system board with up to 4 GB of memory configured in a high- performing dual channel mode.

  • Page 17: Populating Dimm Sockets

    Populating DIMM Sockets There are two DIMM sockets on the system board. Figure 2-6 DIMM Socket Locations — 500B Figure 2-7 DIMM Socket Locations — 505B Table 2-1 DIMM Socket Locations Item Description Socket Color DIMM1 socket, Channel A (populate first) Blue DIMM2 socket, Channel A Blue...

  • Page 18: Installing Memory Modules

    Installing Memory Modules CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.
  • Page 19 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Figure 2-9 Installing a DIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.

  • Page 20: Expansion Cards

    Expansion Cards The computer has one PCI expansion slot, two PCI Express x1 expansion slots, and one PCI Express x16 expansion slot. The expansion slots accommodate full-height or half-height expansion cards. Figure 2-10 Expansion Slot Locations — 500B Figure 2-11 Expansion Slot Locations —...
  • Page 21 NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 expansion slot. To remove, replace, or add an expansion card: Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Locate the add-in cards at the back of the computer.
  • Page 22 Remove the bracket cover. Figure 2-14 Removing the bracket cover If you are removing a graphics card, press on the latch to release it. Figure 2-15 Press the latch to release the graphics card Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis...
  • Page 23 Remove the graphics card from the card slot. NOTE: If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket.
  • Page 24 Lift the card out of the computer. Figure 2-18 Lifting the card from the computer If present, remove any cables connected to the add-in card. Figure 2-19 Removing cables from the card Store the removed card in anti-static packaging. If you are not installing a new expansion card, install an expansion slot cover to close the open slot.
  • Page 25 To install a new expansion card, hold the 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.
  • Page 26 Press straight down until the card is fully seated in the card slot. Figure 2-22 Seating the card Replace the bracket cover on the back of the computer. Figure 2-23 Replacing the bracket cover Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis...

  • Page 27: Cable Management

    Replace the screw to secure the bracket to the back of the computer. Figure 2-24 Replacing the bracket screw Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for instructions on using Computer Setup.

  • Page 28: Cable Connections

    Cable Connections System board connectors are color-coded to make it easier to find the proper connection. Table 2-3 Cable connections — 500B Connector Name Connector Color Description ATX_POWER white power supply, 24-pin ATX_12V white power supply, 4-pin SYS_FAN1 brown chassis fan CPU_FAN white heat sink fan...

  • Page 29: Drives

    Drives The computer supports one optical drive and one hard drive. This section describes the procedure for replacing or upgrading the drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Installing Additional Drives When installing additional drives, follow these guidelines: ●...

  • Page 30: System Board Drive Connections

    System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors. Figure 2-25 System Board Drive Connections — 500B Figure 2-26 System Board Drive Connections — 505B Table 2-5 System Board Drive Connections System Board Label —...

  • Page 31: Removing An Optical Drive

    Removing an Optical Drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. To remove an optical drive: 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 32 Push the drive slightly forward. Figure 2-29 Push the drive forward Pull the disc drive out through the front of the computer. Figure 2-30 Pull the drive from the computer NOTE: To install an optical drive, refer to Replacing an Optical Driveon page Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis...

  • Page 33: Replacing An Optical Drive

    Replacing an Optical Drive To install an optical drive: 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 If the new drive has screws installed on the sides of the drive, remove the screws before inserting the drive into the chassis.

  • Page 34: Removing A Hard Drive

    Align the disc drive screw holes with the drive bay holes (marked “2”). Figure 2-33 Aligning the holes Replace the drive screws. Figure 2-34 Replacing the screws Replace the front bezel, access panel, and reconnect all cables. Lock any security devices that were disengaged when the access panel was removed. The system automatically recognizes the drive and reconfigures the computer.
  • Page 35 Locate the external drive bay at the front of the computer, below the optical drive bays. Figure 2-35 Locating the hard drive Disconnect the power (1) and data (2) cables by squeezing the latch on the connector and pulling to remove. Figure 2-36 Disconnecting the hard drive cables Drives...
  • Page 36 Remove the two screws that secure the hard disk drive to the computer. Figure 2-37 Removing the hard drive screws Pull the hard drive out of the front of the computer. Figure 2-38 Pulling the hard drive from the computer NOTE: To install a hard drive, refer to Replacing a Hard Driveon page...

  • Page 37: Replacing A Hard Drive

    Replacing a Hard Drive Follow the steps in Removing a Hard Drive on page 26 to remove the hard drive. Slide the replacement hard disk drive into the bay. NOTE: If you are replacing an old drive with a new drive, use the four retainer screws from the old drive to install the new drive.
  • Page 38 Attach the two screws to secure the hard disk drive to the bay. Figure 2-41 Replacing the screws that secure the hard drive Attach the power and data connectors to the back of the drive. Figure 2-42 Attaching the connectors Replace the front bezel, computer access panel, and all cables.

  • Page 39: Front I/O And Usb Panel Housing Assembly

    Front I/O and USB Panel Housing Assembly Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the front facing toward you. Remove the front bezel (Front Bezel on page Unplug the four cables that connect the assembly to the system board.

  • Page 40: Power Switch/Led Assembly

    Power Switch/LED Assembly Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the front facing toward you. Remove the front bezel (Front Bezel on page Remove the optical drive (Removing an Optical Drive on page 23).

  • Page 41: System Fan

    System Fan Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the rear facing toward you. Disconnect the cable that connects the system fan to the system board. Remove the four Phillips screws that secure the fan to the chassis, rotate the top of the fan forward, and then remove the fan from the chassis.

  • Page 42: Heat Sink Assembly (Intel) - Model 500B

    Heat sink assembly (Intel) — Model 500B Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the rear facing toward you. Disconnect the heat sink fan control cable from the system board (1). Remove the four torx screws (1) that secure the heat sink to the system board.

  • Page 43: Heat Sink Assembly (Amd) - Model 505B

    Heat sink assembly (AMD) — Model 505B Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the rear facing toward you. Disconnect the heat sink fan control cable from the system board. Lift the lever (1) that secures the heat sink latch to the heat sink bracket attached to the system board.

  • Page 44: Processor (Intel) - Model 500B

    Processor (Intel) — Model 500B Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Lay the computer on its side with the rear facing toward you. Disconnect the heatsink control cable from the system board and remove the heatsink Heat sink assembly (Intel) —...
  • Page 45 Apply the thermal grease provided in the spares kit to the top of the processor and install the heat sink atop the processor. Go to step 7. If using a new heat sink, remove the protective covering from the bottom of the heat sink and place it in position atop the processor.

  • Page 46: Processor (Amd) - Model 505B

    Processor (AMD) — Model 505B Prepare the computer for disassembly (Preparation for Disassembly on page Remove the access panel (Access Panel on page Disconnect the heatsink control cable from the system board and remove the heatsink Heat sink assembly (AMD) — Model 505B on page 35).

  • Page 47: Power Supply

    If using a new heat sink, remove the protective covering from the bottom of the heat sink and place it in position atop the processor. Secure the heat sink to the system board and system board tray with the four captive screws and attach the heat sink control cable to the system board.
  • Page 48 Locate the power supply at the top of the computer. Figure 2-50 Locating the power supply NOTE: Noting the location, type and orientation of the power connectors is extremely important. Failure to correctly restore all power connectors appropriately will prevent the computer or components from working successfully.
  • Page 49 Disconnect the power cable from the optical disc and hard disk drives by squeezing the latch (1) on the connectors and pulling to remove. Figure 2-52 Disconnecting the power cable Power Supply...
  • Page 50 The motherboard power connector has a latch that must be pressed to detach the connector from the motherboard. Figure 2-53 Disconnecting the main system board power connector Some connectors may have latches that must be pressed to remove them. Figure 2-54 Connector Latches Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis...
  • Page 51 Disconnect all other power connectors from the motherboard. Figure 2-55 Disconnecting power connectors Remove the four screws that connect the power supply to the computer. The images below illustrate possible power supply screw locations. Figure 2-56 Removing the power supply screws Power Supply...
  • Page 52 Use a screwdriver to press the latch at the bottom of the power supply to release it. Figure 2-57 Pressing the power supply latch Pull the power supply back and tilt it out of the computer. Figure 2-58 Removing the power supply from the computer To install the power supply, reverse the removal procedure.

  • Page 53: System Board

    Figure 2-59 Power supply securing features System Board When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● Memory modules ● Processor ● Expansion modules To remove the system board: Prepare the computer for disassembly (Preparation for Disassembly on page...

  • Page 54: Battery

    Slide the system board toward the front of the chassis, and then lift it up and out of the chassis. NOTE: The system board in the computer may look slightly different from the one shown here. Figure 2-60 Removing the system board — model 500B shown To install the system board, reverse the removal procedure.

  • Page 55: Type 1 Battery Holder

    ❑ 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. ❑ 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.

  • Page 56: Type 2 Battery Holder

    Type 2 Battery Holder To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery. When the battery pops up, lift it out (1). To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up (2).
  • Page 57 Insert the new battery and position the clip back in place. 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. Refer to the Computer Setup (F10) Utility Guide.

  • Page 58: Appendix A Computer (F10) Setup

    Computer (F10) Setup Model 500B — 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 graphics, audio, storage, communications, and input devices.

  • Page 59: Computer Setup-Main

    ● Boot ● 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. To return to the previous screen, press Esc. CAUTION: Do NOT turn the computer power OFF while the ROM is saving the Computer Setup (F10) changes because the CMOS could become corrupted.

  • Page 60: Computer Setup-Advanced

    Table A-1 Computer Setup—Main (continued) 1st Drive For each, allows you to: 2nd Drive ● Port Configuration - set the ability to configure ports to: ◦ 3rd Drive Enabled ◦ 4th Drive Disabled ● (view only) ◦ Capacity (Size - HDD only) ◦...

  • Page 61: Computer Setup-Power

    Table A-2 Computer Setup—Advanced (continued) ● Onboard Video 32 MB Memory Size ● 64 MB ● 128 MB SATA Controller Allows you to disable/enable the SATA Controller. USB Ports Allows you to disable/enable the USB ports. Onboard LAN Allows you to disable/enable onboard LAN controller. Onboard LAN Boot Allows you to disable/enable the boot ROM of the onboard LAN chip.

  • Page 62: Computer Setup-Boot

    Computer Setup—Boot NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table A-4 Computer Setup—Boot Option Description Boot-time Diagnostic Disables/enables POST diagnostic messages display. Screen ESC: Boot Menu Enables/disables the ability to press the key to access the boot menu during boot. F9: Diagnostics Enables/disables the ability to press the key to access the Diagnostics menu during boo.

  • Page 63: Model 505B - Computer Setup (F10) Utilities

    Table A-5 Computer Setup—Exit Option Description Exit Saving Changes Press Enter to exit saving changes. Exit Discarding Press Enter to exit discarding changes. Changes Load Setup Defaults Press Enter to load setup defaults. Discard Changes Press Enter to discard changes. Save Changes Press Enter...

  • Page 64: Computer Setup-Main

    ● Power ● Boot ● 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. To return to the previous screen, press Esc.

  • Page 65: Computer Setup-Advanced

    Table A-6 Computer Setup—Main (continued) 1st Drive For each, allows you to: 2nd Drive ● Port Configuration - set the ability to configure ports to: ◦ 3rd Drive Enabled ◦ 4th Drive Disabled ● (view only) ◦ Capacity (Size - HDD only) ◦...

  • Page 66: Computer Setup-Power

    Table A-7 Computer Setup—Advanced (continued) Primary Video Adapter Allows you to select the boot display device when more than 2 video options are offered by the system: ● ● PCI-E x1 ● PCI-E x16 ● Onboard Onboard LAN Allows you to disable/enable onboard LAN controller. Onboard LAN Boot Allows you to disable/enable the boot ROM of the onboard LAN chip.

  • Page 67: Computer Setup-Boot

    Computer Setup—Boot NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table A-9 Computer Setup—Boot Option Description Boot-time Diagnostic Disables/enables POST diagnostic messages display. Screen Boot Device Priority Allows you to specify which device groups will boot first, second, third, and fourth or to disable any of the four: ●...
  • Page 68 Table A-10 Computer Setup—Exit Option Description Exit Saving Changes Press Enter to exit saving changes. Exit Discarding Press Enter to exit discarding changes. Changes Load Setup Defaults Press Enter to load setup defaults. Discard Changes Press Enter to discard changes. Save Changes Press Enter...

  • Page 69: Interpreting Diagnostic Beep Codes

    Diagnostics Interpreting Diagnostic Beep Codes The Power-On Self-Test (POST) is a series of diagnostic tests that runs automatically when the computer is powered on. If the POST detects an error, this causes an audible beep code to sound. The POST beep codes are not necessarily accompanied by an associated, visble error code or text message. The following table shows the POST beep codes, their meanings, and the recommended actions for solving the problem.

  • Page 70: Led Codes

    5 short beeps, 3 BIOS recovery was successful No action required. second pause LED Codes The following table describes the LED states for the Compaq 500B and 505B MT Desktop PCs. State LED Status Power LED Indicator System on (normal operation)

  • Page 71: Accessing Hp Insight Diagnostics

    Accessing HP Insight Diagnostics The HP Insight Diagnostics utility can be used to view information about the hardware configuration of the computer. It can also perform hardware diagnostic testing on the computer and its subsystems, which provides information for troubleshooting. HP Insight Diagnostics runs from the recovery discs.

  • Page 72: Post Error/Warning Messages

    Improperly installed The DIMM is not seated properly or a Open the computer casing and reseat the DIMM. If DIMM socket is bad or unusable. this does not work, try different sockets. Check that no debris or corrosion is in the socket. Defective If the above remedies do not solve the Replace the DIMM.

  • Page 73: Power Button/Power Button Led

    For all other SKUs, instead of F10 in the above handling. NOTE: If a device fails to respond while the BIOS tries to configure the device during POST, the BIOS must not make the system look as if it locked up by having an infinite loop or waiting for too long. Instead, the BIOS must time out after a reasonable amount of time (the time varies with the device) and skip to the next process.

  • Page 74: Bios Updates

    BIOS Updates HP periodically releases system BIOS updates, which are available from the HP website. These updates often contain fixes for known issues in the BIOS. To find out whether a PC needs a BIOS update, compare the current BIOS version number against the latest version available for download.
  • Page 75 Remove the jumper from pins 2-3 pins and put it on pins 1-2 to clear CMOS. Keep the cap on pins 1-2 for 5 to 10 seconds. Replace the jumper on pins 2-3. Reinstall the battery. Replace the access panel, external equipment, and reconnect the power cord. Turn on the computer.

  • Page 76: Appendix C Troubleshooting Without Diagnostics

    Troubleshooting Without Diagnostics This chapter provides information on how to identify and correct minor problems, such as 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 Appendix A,...

  • Page 77: Helpful Hints

    To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe. Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online...

  • Page 78: Solving General Problems

    ● If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system. ● If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded video on some models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter.

  • Page 79: Solving Power Problems

    Table C-1 Solving General Problems (continued) Poor performance is experienced. Cause Solution Processor is hot. Make sure airflow to the computer is not blocked. 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 80: Solving Hard Drive Problems

    Solving Hard Drive Problems Table C-3 Solving Hard Drive Problems Drive not found (identified). Cause Solution Cable could be loose. Check cable connections. ● The system may not have automatically recognized a newly Boot and press to launch the HP Setup Utility. installed device.

  • Page 81: Solving Media Card Reader Problems

    Solving Media Card Reader Problems NOTE: It is possible that the driver your memory card uses has become corrupted or is not functioning correctly. From time to time new drivers and firmware are released to address issues. New firmware for your memory card reader might be available that would resolve the particular issue you are having.

  • Page 82: Solving Display Problems

    Table C-4 Solving Media Card Reader Problems (continued) Memory card appears in My Computer, but errors occur when writing or reading. Cause Solution The memory card is not properly inserted. Make sure that the memory card is fully inserted into the slot. The internal memory card reader pin is bent.

  • Page 83: Solving Audio Problems

    Table C-5 Solving Display Problems (continued) High pitched noise coming from inside a flat panel monitor. Cause Solution Brightness and/or contrast settings are too high. Lower brightness and/or contrast settings. Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table.

  • Page 84: Solving Network Problems

    Table C-7 Solving Keyboard Problems (continued) No response from the USB keyboard and mouse during running of application. Cause Solution The application has stopped responding. Restart the computer. Table C-8 Solving Mouse Problems Mouse does not respond to movement or is too slow. Cause Solution Mouse connector is not properly plugged into the back of the...

  • Page 85: Solving Memory Problems

    Table C-9 Solving Network Problems (continued) Diagnostics reports a failure. Cause Solution Network controller interrupt is shared with an expansion board. Under the Computer Setup Advanced menu, change the resource settings for the board. Check that they are different from those of the network controller. The network controller is defective.

  • Page 86: Solving Cd-Rom And Dvd Problems

    Table C-10 Solving Memory Problems (continued) Memory count during POST is wrong. Cause Solution The memory modules may not be installed correctly. Check that the memory modules have been installed correctly and that proper modules are used. One of the memory modules might be faulty. Find out which module is faulty by booting with each module individually.

  • Page 87: Solving Front Panel Component Problems

    Table C-11 Solving CD-ROM and DVD Problems (continued) An optical drive cannot read a CD or DVD disc. Cause Solution Windows does not detect the DVD-ROM drive. Use Device Manager to remove or uninstall the device. Restart the computer and let Windows detect the device. The disc is damaged or corrupted.

  • Page 88: Appendix D 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. 4-Pin Power (for CPU) Connector and Icon Signal +12V CPU -12V CPU Ethernet BNC Connector and Icon Signal...

  • Page 89: Microphone

    Microphone Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_left 1 2 3 2 (Ring) Audio_Right 3 (Shield) Ground Headphone Connector and Icon (1/8” miniphone) Signal 1 (Tip) Audio_left 1 2 3 2 (Ring) Power_Right 3 (Shield) Ground Line-in Audio Connector and Icon (1/8”...

  • Page 90: Monitor

    Monitor Connector and Icon Signal Signal Red Analog +5V (fused) Green Analog Ground Blue Analog Not used Not used DDC Serial Data Ground Horizontal Sync Ground Vertical Sync Ground DDC Serial Clock Ground 24-Pin Power Connector Front Signal Signal Signal Signal +3.3V +3.3V...

  • Page 91: Pci Express

    PCI Express x1, x4, x8, and x16 PCI Express Connector Pin A Signal Signal Signal Signal Signal PRSNT1 JTAG3 PERST# PERp0 PERp1 +12V JTAG4 PERn0 PERn1 +12V JTAG5 REFCLK+ +3.3V REFCLK- RSVD JTAG2 +3.3V PERp2 PERn(2) PERn4 RSVD PERp7 RSVD PERp6 PERn7 PERp3...

  • Page 92: Pci Express

    PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B Signal Signal Signal Signal Signal +12V SMDAT WAKE# +12V RSVD RSVD +3.3 V PETp2 PETp1 JTAG1 PETp0 PETn2 PETn1 SMCLK 3.3vAux PETn0 PRSNT2# PETp6 PETn7 PETp3 PETp5 PRTn6 PETn3 PETp4 PETn5...

  • Page 93: Appendix E Routine Care And Disassembly Preparation

    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 94: Preventing Electrostatic Damage To Equipment

    Removing DIPs* from vinyl tray 2,000 V 4,000 V 11,500 V Removing DIPs* from Styrofoam 3,500 V 5,000 V 14,500 V Removing bubble pack from PCB 7,000 V 20,000 V 26,500 V 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.

  • Page 95: 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 96: 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 97: Routine Care

    Routine Care General Cleaning Safety Precautions Never use solvents or flammable solutions to clean the computer. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. Always unplug the computer when cleaning with liquids or damp cloths.

  • Page 98: Cleaning The Monitor

    ● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly.

  • Page 99: Screws

    ● Diagnostics software ● HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper- resistant bits (Smart Cover FailSafe Key, PN 166527-002) Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths.

  • Page 100: Lithium Coin Cell Battery

    Lithium Coin Cell Battery The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures.

  • Page 101: Appendix F 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 102: Smart Ata Drives

    SMART ATA 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 administrator of an 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.

  • Page 103: Appendix G 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 104: 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 105: Appendix H Specifications

    Specifications Table H-1 Specifications Temperature Range 50° to 95°F 10° to 35°C Operating -22° to 140°F -30° to 60°C Nonoperating Relative Humidity (noncondensing) 10-90% 10-90% Operating 5-95% 5-95% Nonoperating (38.7°C max wet bulb) Maximum Altitude (unpressurized) 10,000 ft 3048 m Operating 30,000 ft 9144 m...
  • Page 106 Table H-1 Specifications (continued) Acoustic noise LWAd = 43 dB LWAd = 55 dB Desktop average LpAm = Desktop average LpAm 32 dBA = 44 dBA NOTE: Listed are the declared A-weighted sound power levels (LWAd) and declared average desktop seated operator position A-weighted sound pressure levels (LpAm) when the product is operating in a 23°C (73.4°F) ambient environment.

  • Page 107: Index

    Index Symbols/Numerics connector pin assignments 80 24-pin power pin assignments 82 country power cord set hard drive 4-pin power pin assignments 80 requirements 96 installing 28 Customer Support 68 proper handling 91 removing 26 access panel SATA characteristics 93 removal and replacement 4 diagnostics 61 hard drive problems 72 audible codes 61...
  • Page 108 monitor temperature control 88 pin assignments 82 removal and replacement tools, servicing 90 monitor problems 74 access panel 4 Torx T15 screwdriver 90 mouse battery 46 cleaning 90 drives 21 updating BIOS 66 mouse problems 75 fan 33 USB pin assignments 80 front bezel 6 processor removal and front I/O device 31...

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