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System Board 

1.

Prepare the computer for disassembly (

Preparation for Disassembly on page 59

)

2.

Remove the access panel.(

Access Panel on page 60

)

3.

Remove the front bezel and lay the computer down on its side to make it easier to work on. (

Front

Bezel on page 61

).

4.

Disconnect the power, and data cables from the back of all installed drives.

5.

Disconnect all cables from the system board.

6.

Remove the heatsink from the system board (

Heatsink on page 80

)

7.

Remove the 6 screws that secure the system board to the chassis (1).

8.

Slide the system board towards the front of the chassis (2) then, angle the back of the board up to
remove it (3).

NOTE:

The system board in the computer may look slightly different from the one shown

here.

To install the system board, reverse the removal procedure.

NOTE:

After installing a new system board, always update the system ROM to ensure that the

latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be
found on the Web at: http:\\h18000.www1.hp.com/support/files.

ENWW

System Board

83

Summary of Contents for Compaq dx2250

Page 1: ...Service Reference Guide HP Compaq dx2250 Business PC ...

Page 2: ...mpanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of...

Page 3: ...low 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 NOTE Text set off in this manner provides important supplemental information ENWW iii ...

Page 4: ...iv About This Book ENWW ...

Page 5: ...Table of contents Index 153 ENWW v ...

Page 6: ...vi ENWW ...

Page 7: ...er was not shipped with a Microsoft operating system some portions of this documentation do not apply For complete operating system installation and configuring instructions refer to the operating system documentation Additional information is available in online help Microsoft security updates are available on the Microsoft Web site Installing or Upgrading Device Drivers When installing optional ...

Page 8: ...ck Start HP Backup and Recovery HP Backup and Recovery Manager to open the Backup and Recovery Wizard then click Next 2 Select Create factory software recovery CDs or DVDs to recover the system 3 Follow the instructions in the wizard The HP Backup and Recovery Manager provides two basic recovery methods The first recovery of files and folders operates in Windows The second PC Recovery requires a r...

Page 9: ...d in this section Secure integrated I O functionality including the serial USB or parallel ports audio or embedded NIC so that they cannot be used until they are unsecured Enable or disable removable media boot ability Enable or disable legacy diskette write ability when supported by hardware Using Computer Setup F10 Utilities Computer Setup can be accessed only by turning the computer on or resta...

Page 10: ...r select Save Exit Setup on the Computer Setup Utility screen and press Enter If you have made changes that you do not want applied select Exit Without Saving and press Enter CAUTION Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup F10 changes because the CMOS could become corrupted It is safe to turn off the computer only after exiting the F10 Setup screen Table 2 1 ...

Page 11: ...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 Cache Size view only Memory Size view only System ROM view only Integrated MAC view only UUID view only System Serial view only Asset Tracking Number view only Enter Asset Tag No Enter asset tag number assigned by t...

Page 12: ...Slave For each if PATA HDD is used allows you to run HDD self test for selected channel SMART Status Check HDD Short Self Test HDD Extended Self Test set PATA Ch 0 Master Slave device details on selected channel to Auto Manual set access mode on selected channel to CHS Cylinder Head Sector LBA Logical Block Addressing Large Auto view Firmware Version Capacity Cylinder Head Precomp Landing Zone Sec...

Page 13: ...rmware Version Capacity Cylinder Head Precomp Landing Zone Sector Floppy Controller Disables enables the floppy disk controller Drive A Allows you to set Drive A to None 1 44M 3 5 in Halt On Allows you to set POST error behavior to All Errors No Errors All but Keyboard All but Diskette All but Diskette Keyboard POST Delay Allows you to set a POST delay to 0 seconds 5 seconds 10 seconds Table 2 3 C...

Page 14: ...ny devices are attached Optical Drive Boot Seq Allows you to specify the order in which attached optical drives including USB ODD are checked for a bootable operating system image Network Boot Seq Allows you to specify the order in which network devices including UP NIC cards are checked for a bootable operating system image First Boot Device Second Boot Device Third Boot Device Fourth Boot Device...

Page 15: ...re frame buffer size 32MB 64MB 128MB Recommended system allocates memory automatically Init Display First VGA Setting Allows you to select the primary display device PCI Slot OnChipVGA PCIEx SURROUNDVIEW VGA Setting Disables enables SURROUNDVIEW available when an ATI PCIEx video card is installed Auto Detect PCI Clk VGA Setting Disables enables PCI clock auto detection Spread Spectrum VGA Setting ...

Page 16: ...ort function USB keyboard USB mouse and USB flash media Onboard LAN Disables enables onboard LAN controller Onboard LAN Boot ROM Disables enables the boot ROM of the onboard LAN chip Onboard Serial Port Allows you to select a setting for the onboard serial port Disabled 3F8 IRQ4 2F8 IRQ3 3E8 IRQ4 2E8 IRQ3 Onboard Parallel Port Allows you to select a setting for the onboard parallel port Disabled 3...

Page 17: ...p Disables enables wake up modem from S5 Wake on PCI Device from S5 Disables enables PCI S5 on power on AMD Cool n Quiet Disables enables the AMD Cool n Quiet feature RTC Alarm Resume Disables enables RTC real time clock alarm Date of Month If RTC Alarm Resume is enabled allows you to select the day of the month for resumption of RTC alarm Set to 0 for every day Resume Time hh mm ss If RTC Alarm R...

Page 18: ...only 3VSB V view only Computer Setup Action Choices NOTE Support for specific Computer Setup options may vary depending on the hardware configuration Table 2 9 Computer Setup Action Choices Option Description Load Optimized Defaults Allows you to reset Computer Setup to factory defaults Set Supervisor Password Allows you to establish a password to control access to Computer Setup Set User Password...

Page 19: ...device a storage device set to emulate a diskette drive and save the diskette or device for possible future use Backing Up the CMOS 1 Make sure the computer to be backed up is turned on Connect the removable storage to the computer 2 Boot to DOS 3 Type N folder BIOS exe SAVE ABC001 DAT where N is the drive letter of the removable storage to save the CMOS setting to the removable storage device Res...

Page 20: ...14 Chapter 2 Computer Setup F10 Utility ENWW ...

Page 21: ...ed by the system and functioning properly Running tests is optional but recommended after installing or connecting a new device You should run tests save the test results and print them so that you have printed reports available before placing a call to the Customer Support Center NOTE Third party devices may not be detected by HP Insight Diagnostics Accessing HP Insight Diagnostics You must boot ...

Page 22: ...use and other input devices connected to the computer Memory Shows information about all memory in the computer This includes memory slots on the system board and any memory modules installed Miscellaneous Shows HP Insight Diagnostics version information computer configuration memory CMOS information system board data and system management BIOS data Storage Shows information about storage media co...

Page 23: ...ll devices 6 Click the Begin Testing button at the bottom right corner of the screen to start the test The Status tab which allows you to monitor the progress of the test is automatically displayed during the testing process When the test is complete the Status tab shows whether the device passed or failed 7 If errors are found go to the Log tab and click the Error Log to display more detailed inf...

Page 24: ...iagnostics tab contains help topics and includes search and index features The Error Codes tab provides a description of each numerical error code that may appear in the Error Log tab located on the Log tab Each code has a corresponding error Message and a Recommended Repair action that should help solve the problem To find an error code description quickly enter the code in the box at the top of ...

Page 25: ...rotect software from loss or damage you should keep a backup copy of all system software applications and related files stored on the hard drive See the operating system or backup utility documentation for instructions on making backup copies of data files Restoring the Software The HP Backup and Recovery Manager is an easy to use versatile application that is pre loaded on each system and allows ...

Page 26: ...tition or from the Recovery Disc Set To reboot to the Recovery Partition press F11 at startup when you see the message Press F11 for Emergency Recovery NOTE For more information on using HP Backup and Recovery Manager refer to the HP Backup and Recovery Manager User Guide by selecting Start HP Backup and Recovery HP Backup and Recovery Manager Manual 20 Chapter 3 HP Insight Diagnostics ENWW ...

Page 27: ...ifecycle The key capabilities and features of desktop management are Initial configuration and deployment Remote system installation Software updating and management ROM flash Asset tracking and security Fault notification and recovery NOTE Support for specific features described in this guide may vary by model or software version Initial Configuration and Deployment The computer comes with a prei...

Page 28: ...tion with the HP OpenView management console To install the Radia Management Agent 1 Click Start 2 Click All Programs 3 Click HP Manageability 4 Click Radia Management Agent Readme 5 Review and follow the instructions contained in the Readme file to install the Radia Management Agent Altiris Deployment Solution Agent This program is pre loaded on the computer When installed it enables communicatio...

Page 29: ...work drives or to removable media such as CDs DVDs or flash media If data or system files are lost deleted or corrupted Backup and Recovery Manager allows you to retrieve data or restore the last good system image CAUTION HP recommends that a backup schedule be created immediately to ensure continued system and data protection Automatic backups can be scheduled using the HP Backup and Recovery Man...

Page 30: ... HP Client Manager HP System Software Manager HP ProtectTools Security Manager HP Client Management Premium Suite HP Client Foundation Suite HP OpenView Client Configuration Manager HP OpenView Management Suite for Desktops using Radia HP Proactive Change Notification HP Subscriber s Choice HP Client Management Interface Regardless of the system management tools your IT department uses managing bo...

Page 31: ... Software Manager SSM is a free utility that automates remote deployment of device drivers and BIOS updates for your networked HP business PCs When SSM runs it silently without user interaction determines the revision levels of drivers and BIOS installed on each networked client system and compares this inventory against system software SoftPaqs that have been tested and stored in a central file s...

Page 32: ...tect 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 BIOS Configuration for ProtectTools Credential Manager for ProtectTools The modules available for your computer may vary depending on your model For example Embedded Security for Prot...

Page 33: ...implified out of the box and easy to use solution that solves immediate PC software configuration management needs Integrated software management Inventory collection Operating system deployment and settings migration Patch management Software distribution Software usage metering Integrated hardware management Remote control HP alert monitoring HP hardware driver and BIOS updates Integration with ...

Page 34: ...mmercial computers and servers You create your own profile to ensure that you only receive the information relevant to a specific IT environment To learn more about the Proactive Change Notification program and create a custom profile visit http h30046 www3 hp com subhub php Subscriber s Choice Subscriber s Choice is a client based service from HP Based on your profile HP will supply you with pers...

Page 35: ...rating system For more information on HPQFlash visit http www hp com support files and enter the model number of the computer when prompted Boot Block Emergency Recovery Mode Boot Block Emergency Recovery Mode permits system recovery in the unlikely event of a ROM flash failure For example if a power failure were to occur during a BIOS upgrade the ROM flash would be incomplete This would render th...

Page 36: ...nsistent configuration of multiple computers NOTE Both procedures require a diskette drive or a supported USB flash media device such as an HP Drive Key Copying to Single Computer CAUTION A setup configuration is model specific File system corruption may result if source and target computers are not the same model For example do not copy the setup configuration from a dc7xxx PC to a dx7xxx PC 1 Se...

Page 37: ...ette or USB flash media device See Supported USB Flash Media Device on page 32 or Unsupported USB Flash Media Device on page 33 CAUTION Not all computers can be booted 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...

Page 38: ...etup 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 1 Turn off the computer 2 Insert the USB flash media device into one of the computer s USB ports and remove all other USB storage devices except USB diskette drives 3 Insert a bootable DOS diskette with FDISK COM and either SYS COM or FORMA...

Page 39: ...evice add the system files and ask for a Volume Label 11 Press Enter for no label or enter one if desired 12 Copy any files you saved in step 9 back to your USB flash media device 13 Remove the diskette and reboot the computer The computer will boot to the USB flash media device as drive C NOTE The default boot order varies from computer to computer and it can be changed in the Computer Setup F10 ...

Page 40: ...s assigned You will need to reassign the IRQ later Exit setup confirming the changes SATA IRQ __________ 7 Insert a bootable DOS diskette with FDISK COM and either SYS COM or FORMAT COM into a diskette drive and turn on the computer to boot to the DOS diskette 8 Run FDISK and delete any existing partitions on the USB flash media device Create a new partition and mark it active Exit FDISK by pressi...

Page 41: ...ower button to put the system in a very low power state standby Press the button again to quickly bring the system out of standby to full power status To completely turn off all power to the system press and hold the power button for four seconds CAUTION Do not use the power button to turn off the computer unless the system is not responding turning off the power without operating system interacti...

Page 42: ...r Lock available on some models help to prevent unauthorized access to the internal components of the personal computer By disabling parallel serial or USB ports or by disabling removable media boot capability you can protect valuable data assets Memory Change and Smart Cover Sensor alerts can be automatically forwarded to system management applications to deliver proactive notification of tamperi...

Page 43: ...ord Smart Cover Allows you to Enable disable the Cover Lock Enable disable the Cover Removal Sensor NOTE Notify User alerts the user that the sensor has detected that the cover has been removed Setup Password requires that the setup password be entered to boot the computer if the sensor detects that the cover has been removed This feature is supported on some models only See the Computer Setup F10...

Page 44: ...e specific computer configuration Password Security The power on password prevents unauthorized use of the computer by requiring entry of a password to access applications or data each time the computer is turned on or restarted The setup password specifically prevents unauthorized access to Computer Setup and can also be used as an override to the power on password That is when prompted for the p...

Page 45: ...ering a Power On Password To enter a power on password complete the following steps 1 Turn on or restart the computer If you are in Windows click Start Shut Down Restart the Computer 2 When the key icon appears on the monitor type the current password then press Enter NOTE Type carefully for security reasons the characters you type do not appear on the screen If you enter the password incorrectly ...

Page 46: ... password another slash or alternate delimiter character and the new password again as shown current password new password new password NOTE Type carefully for security reasons the characters you type do not appear on the screen 4 Press Enter The new password takes effect the next time you turn on the computer NOTE Refer to the National Keyboard Delimiter Characters on page 41 for information abou...

Page 47: ...ng Guide on the Documentation and Diagnostics CD for instructions on clearing passwords If the system is equipped with an embedded security device refer to the HP ProtectTools Security Manager Guide at www hp com DriveLock DriveLock is an industry standard security feature that prevents unauthorized access to the data on ATA hard DriveLock has been implemented as an extension to Computer Setup It ...

Page 48: ...ll continue but the drive will remain inaccessible On a warm boot or restart from Windows if neither attempt succeeds POST will halt and the user will be instructed to cycle power DriveLock Applications The most practical use of the DriveLock security feature is in a corporate environment The system administrator would be responsible for configuring the hard drive which would involve among other t...

Page 49: ...ensor Protection Level To set the Smart Cover Sensor protection level complete the following steps 1 Turn on or restart the computer If you are in Windows click Start Shut Down Restart 2 As soon as the computer is turned on press F10 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 F10 at the appropriate time yo...

Page 50: ...the appropriate time you must restart the computer and again press F10 when the monitor light turns green to access the utility 3 Select Security Smart Cover Cover Lock Unlock 4 Before exiting click File Save Changes and Exit Using the Smart Cover FailSafe Key If you enable the Smart Cover Lock and cannot enter the password to disable the lock you will need a Smart Cover FailSafe Key to open the c...

Page 51: ... failed tests Drive Protection System The Drive Protection System DPS is a diagnostic tool built into the hard drives installed in some HP computers DPS is designed to help diagnose problems that might result in unwarranted hard drive replacement When HP computers are built each installed hard drive is tested using DPS and a permanent record of key information is written onto the drive Each time D...

Page 52: ...46 Chapter 4 Desktop Management ENWW ...

Page 53: ...ages 3 3 V 5 V 12 V Jumpers for configuring drive N A Data transfer rate 3 0 Gb s SATA Hard Drive Cables SATA Data Cable Always use an HP approved SATA 3 0 Gb s cable as it is fully backwards compatible with the SATA 1 5 Gb s drives Current HP desktop products ship with SATA 3 0 Gb s hard drives SATA data cables are susceptible to damage if overflexed Never crease a SATA data cable and never bend ...

Page 54: ...und Ground P2 and P3 differential signal pair P5 and P6 differential signal pair SATA Power Cable Pin Usage Notes Pin Usage Notes P1 V3 3 3 3 V power P9 V5 5 V power P2 V3 3 3 3 V power P10 Ground P3 V3 3 3 3 V power P11 Ground P4 Ground P12 Ground P5 Ground P13 V12 12 V power P6 Ground P14 V12 12 V power P7 V5 5 V power P15 V12 12 V power P8 V5 5 V power 48 Chapter 5 Serial and Parallel ATA Drive...

Page 55: ...puter determines the maximum usable size of a drive partition A drive partition is the largest segment of a drive that may be properly accessed by the operating system A single hard drive may therefore be subdivided into a number of unique drive partitions in order to make use of all of its space Because of the differences in the way that drive sizes are calculated the size reported by the operati...

Page 56: ...50 Chapter 5 Serial and Parallel ATA Drive Guidelines and Features ENWW ...

Page 57: ...apter is essential for proper service CAUTION When the computer is plugged into an AC power source voltage is always applied to the system board You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage Chassis Designations The following subsection illustrates the dx2250 chassis design Microtower MT ENWW Chassis Designations 51...

Page 58: ...400 V 15 000 V 5 000 V 800 V 700 V 35 000 V 12 000 V 6 000 V 2 000 V Removing DIPs from vinyl tray Removing DIPs from Styrofoam Removing bubble pack from PCB Packing PCBs in foam lined box 2 000 V 3 500 V 7 000 V 5 000 V 4 000 V 5 000 V 20 000 V 11 000 V 11 500 V 14 500 V 26 500 V 21 000 V These are then multi packaged inside plastic tubes trays or Styrofoam NOTE 700 volts can degrade a product Pr...

Page 59: ...15 000 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 Use static dissipative mats foot straps or air ionizers to give added protection Handle electrostatic sensitive components parts and assem...

Page 60: ...ice kits Static awareness labels Wrist straps and footwear straps providing one megohm 10 resistance Material handling packages Conductive plastic bags Conductive plastic tubes Conductive tote boxes Opaque shielding bags Transparent metallized shielding bags Transparent shielding tubes 54 Chapter 6 Identifying the Chassis Routine Care and Disassembly Preparation ENWW ...

Page 61: ...ch other s re circulated or preheated air If the computer is to be operated within a separate enclosure intake and exhaust ventilation must be provided on the enclosure and the same operating guidelines listed above will still apply Keep liquids away from the computer and keyboard Never cover the ventilation slots on the monitor with any type of material Install or enable power management function...

Page 62: ...sible debris underneath or between the keys may be removed by vacuuming or shaking Canned pressurized air may be used to clean debris from under the keys Caution should be used as too much air pressure can dislodge lubricants applied under the wide keys 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 outlet...

Page 63: ...ge Tools and Software Requirements To service the computer you need the following Torx T 15 screwdriver HP screwdriver with bits PN 161946 001 Torx T 15 screwdriver with small diameter shank for certain front bezel removal Flat bladed screwdriver may sometimes be used in place of the Torx screwdriver Phillips 2 screwdriver Diagnostics software HP tamper resistant T 15 wrench Smart Cover FailSafe K...

Page 64: ... remove a hard drive while the computer is on or in standby mode Before handling a drive ensure that you are discharged of static electricity While handling a drive avoid touching the connector For more information about preventing electrostatic damage refer to Electrostatic Discharge Information on page 52 Do not use excessive force when inserting a drive Avoid exposing a hard drive to liquids te...

Page 65: ...Turn off the computer before disconnecting any cables CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet In some systems the cooling fan is on even when the computer is in the Standby or Suspend modes The power cord should always be disconnected before servicing a unit 5 Disconnect the power cord from the...

Page 66: ... outlet 2 Disconnect the power cord from the computer and from the power source 1 3 Remove the two screws that secure the access panel to the computer chassis 2 4 Slide the access panel back about 6 mm 1 4 inch then rotate the top of the panel away from the chassis pivot on the bottom and lift it off the unit 3 To replace the access panel reverse the removal steps 60 Chapter 7 Removal and Replacem...

Page 67: ... 59 2 Remove the access panel Access Panel on page 60 3 Press down on all three tabs 1 on the left side of the bezel then rotate the bezel off the chassis 2 beginning with the left side and then the right side To reinstall the front bezel reverse the removal procedure ENWW Front Bezel 61 ...

Page 68: ...e front bezel Front Bezel on page 61 5 25 Drive Bezel Blank While facing the inside of the front bezel press the two retaining tabs on the right towards the outer edge of the bezel 1 and pull the bezel blank inwards 2 to remove it To install a bezel blank reverse the removal procedure 62 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 69: ... press outward on the retaining tabs on each side of the bezel blank 1 and pull the bezel blank inwards to remove it NOTE To install a 3 5 bezel blank press the blank inward from the inside of the front bezel so that it snaps into place ENWW Removing a 3 5 Drive Bezel Blank 63 ...

Page 70: ...5 for DDR2 667 MHz contain the mandatory JEDEC SPD information In addition the computer supports 256Mbit 512Mbit and 1Gbit non ECC memory technologies single sided and double sided DIMMs DIMMs constructed with x8 and x16 DDR devices DIMMs constructed with x4 SDRAM are not supported NOTE The system will not start if you install unsupported DIMMs Installing Memory Modules CAUTION The memory module s...

Page 71: ...ches 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 Match the notch on the module with the tab on the memory socket 4 Push the module down into the socket ensuring that ...

Page 72: ...the computer down on its side to make it easier to work on 4 On the rear of the computer remove the screw that secures the slot cover lock in place 1 then slide the slot cover lock up and away from the slots to remove it from the computer 2 To reinstall the slot cover lock reverse the removal procedure 66 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 73: ...Hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket Be sure not to scrape the card against other components 7 Store the card in anti static packaging 8 Install a new expansion card or an expansion slot cover to close the open slot To install a replacement expansion card go to step 10 9 If you are installing an expansion card for the first t...

Page 74: ...nstall an expansion card make sure you press firmly on the card so that the entire connector seats properly in the expansion card socket 11 Reinstall the slot cover lock and its retaining screw 12 Replace the access panel 13 Connect external cables to the installed card if needed Reconfigure the computer if necessary 68 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 75: ...an break the internal wires Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable Do not rely on components like the drive cage power supply or computer cover to push cables down into the chassis Always position the cables to lay properly by themselves When removing the power supply power cable from the P1 connector on the system board always follow these ...

Page 76: ...ette drive System board FDD1 Black 1st SATA Hard drive System board SATA 0 Orange 2nd SATA Hard drive System board SATA 1 Orange ODD Data System board IDE1 Blue ODD Audio System board JCD1 Black Heatsink fan System board CPU FAN 2 Brown Secondary system fan System board SYSFAN1 White Front power on button System board JFP1 Black Front I O USB System board JUSB1 Black Speaker System board SPKR Whit...

Page 77: ... external storage device before removing the hard drive Failure to do so will result in data loss After replacing the primary hard drive you will need to run the Restore Plus CD to load the Compaq factory installed files Drive Positions Drive Positions Item Description Item Description 1 Optical drive 4 Internal hard drive secondary 2 Optical drive 5 Internal hard drive primary 3 External 3 5 driv...

Page 78: ...al procedure NOTE If you are installing a 5 25 drive for the first time into bay 2 you must first remove the metal shield that covers the bay by pressing in on the silver colored tab on the left side of the chassis then pulling the shield out from the front of the chassis It is not necessary to remove the drive from bay 1 when performing this operation NOTE There are a total of eight extra guide r...

Page 79: ...d If the device is a diskette drive disconnect the power and data cables from the back of the drive 5 Remove the retainer screws that secure the drive in the bay 1 then slide the drive forward and out of the bay 2 To install a drive reverse the removal procedure Be sure to install a guide screw on the front right side of a new drive The guide screw helps secure the drive in place Refer to the tabl...

Page 80: ...d US 6 32 standard threads and for have M3 metric threads US screws are used for used for hard drives and have a silver finish Metric screws are used for all other drives and have a black finish Be sure to install the appropriate guide screws into the drive 74 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 81: ...the rear of the drive bay 2 To replace the hard drive cage reverse the removal procedure No guide screws are required for drives installed in the hard drive bays bays 4 and 5 NOTE If you replaced the primary hard drive the Restore Plus CD may be used to restore the operating system software drivers and or any software applications that were preinstalled on the computer Follow the instructions in t...

Page 82: ... Access Panel on page 60 3 Remove the front bezel Front Bezel on page 61 4 Free the two cables from the cable tie that is attached to the chassis 5 Remove the screw 1 that secures the housing to the chassis and then rotate the housing away from the chassis and pull the assembly out of the chassis To install the housing assembly reverse the removal procedures 76 Chapter 7 Removal and Replacement Pr...

Page 83: ...to the table to make it easier to work on Access Panel on page 60 3 Disconnect the braided cables from the system board 4 Free the braided cables from the cable tie that is attached to the chassis 5 Squeeze the top of the switch holder 1 rotate the switch and remove it from the chassis To install the power switch assembly reverse the removal procedures ENWW Power Switch Assembly 77 ...

Page 84: ...d 5 Free the cable from the cable tie that is attached to the chassis 6 Remove the screw that secures the speaker to the inside of the chassis 1 then remove the speaker 2 by sliding it out of the retaining clips To install the speaker reverse the removal procedure When installing the speaker make sure the speaker wires point towards the speaker retaining screw 78 Chapter 7 Removal and Replacement ...

Page 85: ...connect the cable that connects the system fan to the system board 4 Remove the screws that secure the fan to the chassis and remove the fan To install the fan reverse the removal procedures NOTE When installing the fan make sure the wires leading from the fan are located near the P2 4 pin power connector on the system board ENWW System Fan 79 ...

Page 86: ...om has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor New heatsinks come from the factory with fresh thermal grease already applied Position the heatsink so that fan wiring is closest to the power supply Check to ensure that the heatsink mounting lugs do not rest on any electrical components before tightening the retaining screws CAUTION Hea...

Page 87: ... socket These pins are very fragile and handling them could cause irreparable damage Once pins are damaged it may be necessary to replace the system board CAUTION The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections To install a new processor 1 Place the processor in its socket and close the retainer 2 Secure the locking...

Page 88: ... in diagonally opposite pairs as in an X to evenly seat the heatsink on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board NOTE After installing a new processor onto the system board always update the system ROM to ensure that the latest version of the BIOS is being used on the computer The latest syst...

Page 89: ...tem board Heatsink on page 80 7 Remove the 6 screws that secure the system board to the chassis 1 8 Slide the system board towards the front of the chassis 2 then angle the back of the board up to remove it 3 NOTE The system board in the computer may look slightly different from the one shown here To install the system board reverse the removal procedure NOTE After installing a new system board al...

Page 90: ...is 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 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 In order to forward them to...

Page 91: ...3 The battery holder automatically secures the battery in the proper position 4 Replace the computer access panel 5 Plug in the computer and turn on power to the computer 6 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ENWW Battery 85 ...

Page 92: ... 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 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide 86 Chapter 7 Removal and Replacemen...

Page 93: ...2 Insert the new battery and position the clip back in place 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ENWW Battery 87 ...

Page 94: ...re the computer for disassembly Preparation for Disassembly on page 59 2 Remove the access panel Access Panel on page 60 3 Disconnect all power cables from the mass storage devices and from the system board 4 Remove the 4 screws that secure the power supply to the chassis 5 Slide the power supply toward the front of the computer then lift it out of the computer To install the power supply reverse ...

Page 95: ...me of these connectors may not be used on the product being serviced Keyboard Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Mouse Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Ethernet BNC Connector and Icon Pin Signal 1 2 Data Ground ENWW Keyboard 89 ...

Page 96: ... Signal Pin Signal 1 2 3 4 Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit 9 10 11 12 Positive AUI Differential Receive 12V Ground Ground 5 6 7 8 Positive AUI Differential Transmit Ground Ground Negative AUI Differential Receive 13 14 15 16 Unused Unused Unused Unused 90 Appendix A Connector Pin Assignments ENWW ...

Page 97: ... Linefeed Error Initialize Printer Select IN 9 Data Bit 7 18 25 Signal Ground Serial Interface Powered and Non Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect 12V if powered Receive Data Transmit Data 4 5 6 Data Terminal Ready Signal Ground Data Set Ready 7 8 9 Request to Send Clear to Send Ring Indicator 5V if powered USB Connector and Icon Pin Signal 1 2 3 4 5 VDC Data Data Ground ENW...

Page 98: ... Shield Audio_left Power_Right Ground Line in Audio Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_In_Left Audio_In_Right Ground Line out Audio Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_Out_Left Audio_Out_Right Ground External Infrared Transceiver Connector and Icon Pin Signal 92 Appendix A Connector Pin Assignments ENWW ...

Page 99: ...ot Used Monitor Connector and Icon Pin Signal Pin Signal 1 2 3 4 Red Analog Green Analog Blue Analog Not used 9 10 11 12 5V fused Ground Not used DDC Serial Data 5 6 7 8 Ground Ground Ground Ground 13 14 15 Horizontal Sync Vertical Sync DDC Serial Clock ENWW Monitor 93 ...

Page 100: ...DA1 PDIAG cable detect DA0 DA2 9 10 11 12 DD4 DD11 DD3 DD12 23 24 25 26 DIOW Ground DIOR Ground 37 38 39 40 CS1FX CS3FX DASP Ground 13 14 DD2 DD13 27 28 IORDY CSEL 24 Pin Power Connector 24 12 13 1 Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 6 3 3V 3 3V GND 5V GND 5V 7 8 9 10 11 12 GND POK 5 Vaux 12V 12V 3 3V 13 14 15 16 17 18 3 3V 12V GND PSON GND GND 19 20 21 22 23 24 GND open 5V 5V 5V...

Page 101: ...2 PWRGD 3 3V 3 3V Tach GND Fan CMD 13 14 15 16 17 18 12V 5V Sense GND 5V 5V 3 3V 19 20 21 22 23 24 GND 3 3V Sense 3 3V 3 3V GND 12V 4 Pin Power for CPU Connector and Icon Pin Signal 1 2 3 4 GND GND 12V CPU 12V CPU 6 Pin Power for CPU Connector and Icon Pin Signal 6 4 1 2 3 4 5 6 GND GND GND 12V CPU 12V CPU 12V ENWW 24 Pin MicroFit Power 95 ...

Page 102: ...Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 PRSNT1 12V 12V GND JTAG2 6 7 8 9 10 JTAG3 JTAG4 JTAG5 3 3V 3 3V 11 12 13 14 15 PERST GND REFCLK REFCLK GND 16 17 18 19 20 PERp0 PERn0 GND RSVD GND 21 22 23 24 25 PERp1 PERn1 GND GND PERp2 26 27 28 29 30 PERn 2 GND GND PERp3 PERn3 31 32 33 34 35 GND RSVD RSVD GND PERp4 36 37 38 39 40 PERn4 GND GND PERp5 PERn5 41 42 43 44 45 GND GND PE...

Page 103: ... 49 x16 PCI Express uses pins 1 8 PCI Express x1 x4 x8 and x16 PCI Express Connector Pin B Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 12V 12V RSVD GND SMCLK 6 7 8 9 10 SMDAT GND 3 3 V JTAG1 3 3vAux 11 12 13 14 15 WAKE RSVD GND PETp0 PETn0 16 17 18 19 20 GND GND PETp1 PETn1 21 22 23 24 25 GND GND PETp2 PETn2 GND 26 27 28 29 30 GND PETp3 PETn3 GND RSVD 31 32 33 34 35 PRSNT2 GND...

Page 104: ...s uses pins 1 32 x8 PCI Express uses pins 1 49 x16 PCI Express uses pins 1 8 DVI Connector Connector and Icon Pin Signal Pin Signal 1 2 3 4 T M D S Data2 T M D S Data2 T M D S Data2 4 Shield T M D S Data4 13 14 15 16 T M D S Data3 5V Power Ground for 5V Hot Pug Detect 5 6 7 8 T M D S Data4 DDC Clock DDC Data No Connect 17 18 19 20 T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 9 ...

Page 105: ...12 T M D S Data3 24 T M D S Clock ENWW DVI Connector 99 ...

Page 106: ...100 Appendix A Connector Pin Assignments ENWW ...

Page 107: ... power cord set will be installed 2 The power cord set must have a minimum current capacity of 10A 7A Japan only and a nominal voltage rating of 125 or 250 volts AC as required by each country s power system 3 The diameter of the wire must be a minimum of 0 75 mm2 or 18AWG and the length of the cord must be between 1 8 m 6 feet and 3 6 m 12 feet The power cord should be routed so that it is not li...

Page 108: ...cation mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SVT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration 3 Appliance coupler flexible cord and wall plug must bear a T mark and registration number in accordance with the Japanese De...

Page 109: ...s not run all of the system level tests such as the memory test Full Boot runs all of the ROM based system tests and takes longer to complete Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis To establish the schedule reconfigure the computer to the Full Boot Every x Days mode using Computer Setup NOTE For more information on Computer Setup see the Computer Set...

Page 110: ...download during POST 1 If a PCI expansion card was recently added remove it to see if the problem remains 2 In Computer Setup set Advanced Device Options NIC PXE Option ROM Download to DISABLE to prevent PXE option ROM for the internal NIC from being downloaded during POST to free more memory for an expansion card s option ROM Internal PXE option ROM is used for booting from the NIC to a PXE serve...

Page 111: ...ly installed 3 Verify proper memory module type 4 Remove and replace the identified faulty memory module s 5 If the error persists after replacing memory modules replace the system board 213 Incompatible Memory Module in Memory Socket s X X A memory module in memory socket identified in the error message is missing critical SPD information or is incompatible with the chipset 1 Verify proper memory...

Page 112: ...ts with another device Enter Computer Setup and reset the IRQ in Advanced Onboard Devices 501 Display Adapter Failure Graphics display controller 1 Reseat the graphics card if applicable 2 Clear CMOS 3 Verify monitor is attached and turned on 4 Replace the graphics card if possible 510 Flash Screen Image Corrupted Flash Screen image has errors Reflash the system ROM with the latest BIOS image 511 ...

Page 113: ...dio harness 918 Front USB Not Connected Front USB harness has been detached or unseated from motherboard Reconnect or replace front USB harness 921 Device in PCI Express slot failed to initialize There is an incompatibility problem with this device and the system or PCI Express Link could not be retrained to an x1 Try rebooting the system If the error reoccurs the device may not work with this sys...

Page 114: ... cannot be accessed while the system is configured for RAID mode Either remove the Drivelocked SATA device or disable the Drivelock feature To disable the Drivelock feature enter Computer Setup change Storage Storage Options SATA Emulation to IDE and select File Save Changes and Exit Reenter Computer Setup and select Security Drivelock For each listed Drivelock capable SATA device ensure Drivelock...

Page 115: ... replace the system board 2204 Inventory error during MEBx execution BIOS information passed to the MEBx resulted in a failure 1 Reboot the computer 2 If the error persists update to the latest BIOS version 3 If the error still persists replace the system board 2205 Interface error during MEBx execution MEBx operation experienced a hardware error during communication with ME 1 Reboot the computer ...

Page 116: ...FF chassis 1 Remove the computer cover press the power button and see if the processor fan spins If the processor fan is not spinning make sure the fan s cable is plugged onto the system board header Ensure the heatsink is properly seated and installed 2 If the fan is plugged in and the heatsink is properly seated but the fan does not spin then replace the heatsink fan assembly Table C 1 Numeric C...

Page 117: ... if the processor fan spins If the processor fan is not spinning make sure the fan s cable is plugged onto the system board header Ensure the fan is fully properly seated or installed WARNING Rotating fan blades can cause serious bodily harm Be sure to keep your hands away from the rotating blades 3 If fan is plugged in and seated properly but is not spinning then replace processor fan 4 Reseat pr...

Page 118: ... 1 Check that the voltage selector some models located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region 2 Replace the system board OR Press and hold the power button for less than 4 seconds If the hard drive LED does not turn on green then 1 Check that the unit is plugged into a working AC outlet 2 Open hood and check that the power bu...

Page 119: ...ion refer to Safety Regulatory Information on the Documentation and Diagnostics CD Before You Call for Technical Support If you are having problems with the computer try the appropriate solutions below to try to isolate the exact problem before calling for technical support Run the diagnostics utility Refer to Chapter 1 HP Insight Diagnostics on page 15 for more information Run the Drive Protectio...

Page 120: ...me troubleshooting the problem with the service technician Remove any hardware that was recently added to your system Remove any software that was recently installed Restore the system to a Recovery Point created in HP Backup and Recovery Manager or run the Restore Plus CD For more information on using HP Backup and Recovery Manager refer to the HP Backup and Recovery Manager User Guide by selecti...

Page 121: ...ded device drivers have been installed For example if you are using a printer you need a driver for that model printer Remove all bootable media diskette CD or USB device from the system before turning it on 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 embedde...

Page 122: ...onal 1 Press and hold the power button for at least four seconds until the computer turns off 2 Disconnect the power cord from the electrical outlet Computer will not respond to USB keyboard or mouse Cause Solution Computer is in standby mode To resume from standby mode press the power button CAUTION When attempting to resume from standby mode do not hold down the power button for more than four s...

Page 123: ...of the computer If the correct jack is being used and the problem persists the jack may have been retasked to perform a function that is different from the default function Open the Realtek control panel by clicking the Realtek HD Audio Manager icon in the task tray or the Realtek entry in the operating system s Control Panel and set the jack to the desired function Poor performance is experienced...

Page 124: ...e every second followed by a two second pause and the computer beeps two times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution Processor thermal protection activated A fan may be blocked or not turning OR The heatsink is not properly attached to the processor 1 Ensure that the computer air vents are not blocked and the processor cooling fan is running 2 Open hood press p...

Page 125: ...ood and check that the power button harness is properly connected to the system board 3 Check that both power supply cables are properly connected to the system board 4 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 5 If the 5V_aux light on the system board is off then replace the power supply 6 Replace the system board Ta...

Page 126: ...an is not spinning make sure the fan s cable is plugged onto the system board header 3 If fan is plugged in but is not spinning then replace the heatsink fan assembly 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 1...

Page 127: ...re connected to the drive Drive not found Cause Solution Cable is loose Reseat diskette drive data and power cables Removable drive is not seated properly Reseat the drive Diskette drive cannot write to a diskette Cause Solution Diskette is not formatted Format the diskette 1 From Windows Explorer select the disk A drive 2 Right click the drive letter and select Format 3 Select the desired options...

Page 128: ...e type for the drive type Check the type of drive that you are using and use the correct diskette type You are reading the wrong drive Check the drive letter in the path statement Diskette is damaged Replace the diskette with a new one Invalid system disk message is displayed Cause Solution A diskette that does not contain the system files needed to start the computer has been inserted in the driv...

Page 129: ... Media Boot function in Computer Setup overrides the Boot Order enable command Network server mode is enabled in Computer Setup Run Computer Setup and disable Network Server Mode in Security Password Options Table D 3 Solving Diskette Problems continued ENWW Solving Diskette Problems 123 ...

Page 130: ... the device is listed within Computer Setup If it is listed the probable cause is a driver problem If it is not listed the probable cause is a hardware problem If this is a newly installed drive run the Computer Setup utility and try adding a POST delay under Advanced Power On Options The device is attached to a SATA port that has been disabled in Computer Setup Run the Computer Setup utility and ...

Page 131: ...try Computer will not boot from hard drive Cause Solution The device is attached to a SATA port that has been disabled in Computer Setup Run the Computer Setup utility and ensure the device s SATA port is enabled in Storage Storage Options Boot order is not correct Run the Computer Setup utility and change boot sequence in Storage Boot Order Hard Drive s Emulation Type is set to None Run the Compu...

Page 132: ...t of the SD card is not in the locked position If using a Memory Stick PRO card make sure that the lock tab located on the bottom of the Memory Stick PRO card is not in the locked position Can not write to the media card Cause Solution The media card is a read only memory ROM card Check the manufacturer s documentation included with your card to see if it is writable Unable to access data on the m...

Page 133: ...the boot process Computer will not boot from a USB removable drive or media that is inserted in the USB port on the media card reader Cause Solution The media card reader is connected to the computer via the PCI card which is not supported on the HP Desktop BIOS The bootable USB device will have boot support if you connect the media card reader to an available USB connector on the computer s syste...

Page 134: ...resolution chosen Computer is in standby mode Press the power button to resume from standby mode CAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose any unsaved data Monitor cable is plugged into the wrong connector Ensure that the monitor is plugged into an active connector on the ...

Page 135: ...d 3 Replace the system board For systems with integrated graphics replace the system board Blank screen and the power LED flashes Red seven times once every second followed by a two second pause and the computer beeps seven times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution System board failure ROM detected failure prior to video Replace the system board Monitor does ...

Page 136: ... the monitor Monitor needs to be degaussed Degauss the monitor Refer to the documentation that came with the monitor for instructions Image is not centered Cause Solution Position may need adjustment Press the Menu button to access the OSD menu Select ImageControl Horizontal Position or Vertical Position to adjust the horizontal or vertical position of the image No Connection Check Signal Cable di...

Page 137: ...alog VGA input connection only Cause Solution Flat panel monitor s internal digital conversion circuits may be unable to correctly interpret the output synchronization of the graphics card 1 Select the monitor s Auto Adjustment option in the monitor s on screen display menu 2 Manually synchronize the Clock and Clock Phase on screen display functions To download a SoftPaq that will assist you with ...

Page 138: ...r then make sure that Mute is not selected and use the volume slider to adjust the volume Audio is hidden in Computer Setup Enable the audio in Computer Setup Security Device Security Audio The external speakers are not turned on Turn on the external speakers The audio device may be connected to the wrong jack on the rear of the computer or the jack has been retasked to perform a different functio...

Page 139: ...e than four seconds Otherwise the computer will shut down and you will lose any unsaved data Sound from headphones is not clear or muffled Cause Solution Headphones are plugged into the rear audio output connector The rear audio output connector is for powered audio devices and is not designed for headphone use Plug the headphones into the headphone connector on the front of the computer Computer ...

Page 140: ...e the connection to the printer Make the proper network connections to the printer Printer may have failed Run printer self test Printer will not turn on Cause Solution The cables may not be connected properly Reconnect all cables and check the power cord and electrical outlet Printer prints garbled information Cause Solution The correct printer driver for the application is not installed Install ...

Page 141: ...lable for device status 2 Check replace device batteries 3 Reset receiver and keyboard Computer is in standby mode Press the power button to resume from standby mode CAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose any unsaved data Cursor will not move using the arrow keys on the...

Page 142: ... Check the software if available for device status 2 Check replace device batteries 3 Reset receiver and mouse Computer is in standby mode Press the power button to resume from standby mode CAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose any unsaved data Mouse will only move ver...

Page 143: ...r cables are unplugged Ensure that all cables are properly and securely connected and that pins in the cable or connector are not bent down Power switch of new external device is not turned on Turn off the computer turn on the external device then turn on the computer to integrate the device with the computer system When the system advised you of changes to the configuration you did not accept the...

Page 144: ...stop after fifth iteration but LEDs continue flashing Cause Solution Graphics card is not seated properly or is bad or system board is bad For systems with a graphics card 1 Reseat the graphics card Power on the system 2 Replace the graphics card 3 Replace the system board For systems with integrated graphics replace the system board Power LED flashes Red ten times once every second followed by a ...

Page 145: ... Network driver does not detect network controller Cause Solution Network controller is disabled 1 Run Computer Setup and enable network controller 2 Enable the network controller in the operating system via Device Manager Incorrect network driver Check the network controller documentation for the correct driver or obtain the latest driver from the manufacturer s Web site Network status link light...

Page 146: ...nu change the resource settings for the board The network controller is defective Replace the network controller Diagnostics passes but the computer does not communicate with the network Cause Solution Network drivers are not loaded or driver parameters do not match current configuration Make sure the network drivers are loaded and that the driver parameters match the configuration of the network ...

Page 147: ...ill not boot Cause Solution New network card may be defective or may not meet industry standard specifications Install a working industry standard NIC or change the boot sequence to boot from another source Cannot connect to network server when attempting Remote System Installation Cause Solution The network controller is not configured properly Verify Network Connectivity that a DHCP Server is pr...

Page 148: ...with the correct industry standard device for the computer On some models ECC and non ECC memory modules cannot be mixed Out of memory error Cause Solution Memory configuration may not be set up correctly Use the Device Manager to check memory configuration You have run out of memory to run the application Check the application documentation to determine the memory requirements Memory count during...

Page 149: ...h iteration but LEDs continue flashing Cause Solution Memory is installed incorrectly or is bad 1 Reseat DIMMs Power on the system 2 Replace DIMMs one at a time to isolate the faulty module 3 Replace third party memory with HP memory 4 Replace the system board Table D 13 Solving Memory Problems continued ENWW Solving Memory Problems 143 ...

Page 150: ... to the computer is not blocked 2 Make sure the fans are connected and working properly some fans only operate when needed 3 Make sure the processor heatsink is installed properly Power LED flashes Red three times once every second followed by a two second pause Cause Solution Processor is not seated properly or not installed 1 Check to see that the processor is present 2 Reseat the processor 144 ...

Page 151: ... in Storage Boot Order Drive not found identified Cause Solution Cable could be loose Check cable connections The system may not have automatically recognized a newly installed device See reconfiguration directions in the Solving Hardware Installation Problems on page 137 section If the system still does not recognize the new device check to see if the device is listed within Computer Setup If it ...

Page 152: ... insert the Media with the label facing up The DVD ROM drive takes longer to start because it has to determine the type of media played such as audio or video Wait at least 30 seconds to let the DVD ROM drive determine the type of media being played If the disc still does not start read the other solutions listed for this topic CD or DVD disc is dirty Clean CD or DVD with a CD cleaning kit availab...

Page 153: ...ing a CD ROM or DVD drive Cause Solution The system is searching for the drive during boot because the drive cable is still attached to the system board Disconnect the drive cable from the system board ENWW Solving CD ROM and DVD Problems 147 ...

Page 154: ...wer up Ensure the device is fully inserted into the USB port before applying power to the system System will not boot from USB Drive Key Cause Solution Boot order is not correct Run the Computer Setup utility and change boot sequence in Storage Boot Order Removable Media Boot is disabled in the Computer Setup utility Run the Computer Setup utility and enable booting to removable media in Storage S...

Page 155: ...tart the computer The device does not have power If the USB device requires AC power be sure one end is connected to the device and one end is connected to a live outlet The correct device driver is not installed 1 Install the correct driver for the device 2 You might need to reboot the computer The cable from the device to the computer does not work 1 If possible replace the cable 2 Restart the c...

Page 156: ... DSL modem will be on The CAT5 UTP cable is disconnected Connect the CAT5 UTP cable between the cable modem and the computers s RJ 45 connector If the connection is good the PC LED light on the front of the cable DSL modem will be on IP address is not configured properly Contact your ISP for the correct IP address Cookies are corrupted A cookie is a small piece of information that a Web server can...

Page 157: ... problems click the Troubleshoot button and follow the on screen instructions Windows 2000 1 Select Start Settings Control Panel 2 Double click System 3 Click the Hardware tab 4 In the Device Manager area click the Device Manager button 5 Double click Ports COM LPT 6 Right click the COM port the modem uses then click Properties 7 Under Device status verify that the modem is working properly 8 Unde...

Page 158: ...ving Software Problems Computer will not continue and no HP logo screen has appeared Cause Solution POST error has occurred Observe the beeps and LED lights on the front of the computer See Appendix A POST Error Messages on page 103 to determine possible causes See the Restore Kit or the Worldwide Limited Warranty for terms and conditions Computer will not continue after HP logo screen has appeare...

Page 159: ...51 adding devices 1 cables 58 cooling fan 57 cover lock security 43 electrostatic discharge 52 FailSafe Key 44 keyboard cleaning 56 keyboard keys 56 operating system installation 1 protecting ROM 28 CD ROM or DVD problems 145 change notification 28 changing operating systems important information 35 changing password 40 chasis types illustrated 51 chassis MT illustrated 51 cleaning computer 55 mou...

Page 160: ...ckup and Recovery Manager 23 Client Foundation Suite 27 Client Management Interface 24 Client Management Premium Suite 26 Client Manager 25 ProtectTools Security Manager 26 System Software Manager 25 HP Backup and Recovery Manager 2 HP Drive Key bootable 32 33 DiskOnKey 32 HP Insight Diagnostics 15 HP Lifecycle solutions 21 HP OpenView Agent 22 HP OpenView Client Configuration Manager 27 HP OpenVi...

Page 161: ...ity Manager 26 PXE Preboot Execution Environment 24 R Radia Management Agent 22 recovery creating disc recovery set 2 Recovery Disc Set 19 Recovery Mode Boot Block Emergency 29 recovery software 21 Remote ROM Flash 29 remote setup 24 Remote System Installation 24 removal and replacement 5 25 drive 72 access pannel 60 battery 84 expansion card 67 expansion slot cover lock 66 front bezel 61 front I ...

Page 162: ... Choice 28 surge tolerant power supply 45 system board SATA connectors 47 system board removal and replacement 83 system fan removal and replacement 79 System Software Manager 25 T tamper proof screws tool 57 temperature control 55 temperature internal computer 45 thermal sensor 45 tools servicing 57 Torx T15 screwdriver 57 U unlocking Smart Cover Lock 44 URLs Web sites See Web sites USB flash med...

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