HP Compaq dx7400 Service & Reference Manual Download Page 120

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Heatsink Fan

Prepare the computer for disassembly (

Preparation for Disassembly on page 87

Remove the access panel (

Access Panel on page 88

Remove the heatsink (

Heatsink on page 109

Disconnect the heatsink fan cable from the system board.

Remove the four screws that secure the fan to the front of the heatsink (1), and then remove the
fan from the heatsink (2).

To install the heatsink fan, reverse the removal procedure.

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

Summary of Contents for Compaq dx7400

Page 1: ...Service Reference Guide HP Compaq dx7400 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: ...ollow 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 iii ...

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

Page 5: ...ing the Configuration Settings 11 Backing Up the CMOS 11 Restoring the CMOS 11 3 HP Insight Diagnostics HP Insight Diagnostics 12 Accessing HP Insight Diagnostics 12 Survey Tab 13 Test Tab 14 Status Tab 14 Log Tab 15 Help Tab 15 Saving and Printing Information in HP Insight Diagnostics 16 Downloading the Latest Version of HP Insight Diagnostics 16 HP Backup and Recovery Manager 17 4 Desktop Manage...

Page 6: ...USB Flash Media Device 32 Unsupported USB Flash Media Device 33 Dual State Power Button 35 HP Web Site Support 35 Industry Standards 36 Asset Tracking and Security 36 Password Security 38 Establishing a Setup Password Using Computer Setup 38 Establishing a Power On Password Using Computer Setup 38 Entering a Power On Password 39 Entering a Setup Password 39 Changing a Power On or Setup Password 40...

Page 7: ...ea 51 Recommended Materials and Equipment 51 Operating Guidelines 52 Routine Care 52 General Cleaning Safety Precautions 52 Cleaning the Computer Case 52 Cleaning the Keyboard 53 Cleaning the Monitor 53 Cleaning the Mouse 54 Service Considerations 54 Power Supply Fan 54 Tools and Software Requirements 54 Screws 54 Cables and Connectors 55 Hard Drives 55 Lithium Coin Cell Battery 55 7 Removal and R...

Page 8: ...rocedures Small Form Factor SFF Chassis Preparation for Disassembly 87 Access Panel 88 Front Bezel 89 Bezel Blanks 90 5 25 inch Drive Bezel Blank 90 3 5 inch Drive Bezel Blank 90 Cable Management 91 Cable Connections 92 Drives 93 Drive Positions 93 System Board Drive Connections 94 Optical Drive 95 External 3 5 inch Media Card Reader or Diskette Drive 96 Hard Drive 97 Memory 99 DDR2 SDRAM DIMMs 99...

Page 9: ...tandard Data Cable 124 24 Pin Power 124 24 Pin MicroFit Power 125 4 Pin Power for CPU 125 6 Pin Power for CPU 125 SATA Data and Power 126 PCI Express 126 PCI Express 127 DVI Connector 128 Appendix B Power Cord Set Requirements General Requirements 129 Japanese Power Cord Requirements 129 Country Specific Requirements 130 Appendix C POST Error Messages POST Numeric Codes and Text Messages 132 Inter...

Page 10: ...rdware Installation Problems 163 Solving Network Problems 165 Solving Memory Problems 168 Solving Processor Problems 170 Solving CD ROM and DVD Problems 170 Solving Drive Key Problems 173 Solving Front Panel Component Problems 173 Solving Internet Access Problems 174 Solving Software Problems 176 Contacting Customer Support 177 Appendix E System Board and Riser Board Reference Designators 178 Inde...

Page 11: ...ed on the operating system is automatically installed This takes approximately 5 to 10 minutes depending on the operating system being installed Carefully read and follow the instructions that appear on the screen to complete the installation NOTE If the computer shipped with more than one operating system language on the hard drive the installation process could take up to 60 minutes Microsoft se...

Page 12: ... the Microsoft Operating System and any Supplemental Software CDs NOTE HP highly recommends that you create a Recovery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups To create the Recovery Disc Set 1 Click Start HP Backup and Recovery HP Backup and Recovery Manager to open the Backup and Recovery Wizard then click Next 2 Select Create factory s...

Page 13: ...his 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 restarting ...

Page 14: ...mized default values press the F7 key CAUTION Do NOT turn the computer power OFF while the ROM 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 Computer Setup F10 Utility Main Menu Heading Table System Information Table 2 2 Computer Setup System Information on page 5 Main Table 2 3...

Page 15: ... 2 Computer Setup System Information Option Description Product Name view only SKU Number view only Processor Type view only Processor Speed view only System ROM view only Cache Size view only Memory Size view only Integrated MAC view only UUID view only System Serial view only Asset Tracking Number view only Computer Setup F10 Utilities 5 ...

Page 16: ...3 SATA Port 4 For each allows you to run HDD self test for selected channel SMART Status Check HDD Short Self Test HDD Extended Self Test auto detect HDD size and head set IDE drive on selected channel to None Auto set access mode on selected channel to Large Auto view Firmware Capacity Cylinder Head Precomp Landing Zone Sector Onboard FDC Controller Disables enables the floppy disk controller Dri...

Page 17: ...y to allocate for video memory 128MB 256MB 384MB Init Display First VGA Setting Allows you to select the primary display device PCI Slot OnChipVGA PCIEx Onboard HD Audio Disables enables onboard HD audio OnChip USB Controller Disables enables USB controller USB Legacy Support Disables enables USB legacy support function USB keyboard USB mouse and USB flash media Onboard LAN Disables enables onboar...

Page 18: ... behavior On Off Last State Wake on PCI Device from S5 Disables enables waking up from S5 by PCI device 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 Resume is enabled allows you to select what time the RTC alarm w...

Page 19: ...e Key or USB flash media The first drive in the order has priority in the boot sequence and is recognized as drive C if any 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 ar...

Page 20: ...fan detection during POST Smart Fan Function Disables enables smart fan functionality Current CPU Temperature view only Current System Temperature view only Current CPU Fan Speed view only Current System Fan Speed view only Vcore view only 12V view only 5V view only VBAT V view only 5VSB V view only Computer Setup Exit NOTE Support for specific Computer Setup options may vary depending on the hard...

Page 21: ...ke 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 ...

Page 22: ...ed 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 To access HP Insight Diagnostics you must create a Recovery Disc Set then boot to the CD contai...

Page 23: ...ng categories of information to display All Gives a listing of all categories of information about the computer Overview Gives you a listing of general information about the computer Architecture Provides system BIOS and PCI device information Asset Control Shows product name asset tag system serial number and processor information Communication Shows information about the computer parallel LPT an...

Page 24: ... you want to run Quick Complete or Custom 3 Select the Test Mode Interactive or Unattended 4 Choose how you want the test to be executed either Number of Loops or Total Test Time When choosing to run the test over a specified number of loops enter the number of loops to perform If you desire to have the diagnostic test for a specified time period enter the amount of time in minutes 5 If performing...

Page 25: ...displays the device tested The Test section displays the type of test run The Description section describes the error that the diagnostic test found The Recommended Repair will give a recommended action that should be performed to resolve the failed hardware The Failed Count is the number of times the device has failed a test The Error Code provides a numerical code for the failure The error codes...

Page 26: ... the inserted diskette or USB HP Drive Key NOTE Do not remove the diskette or USB key until you see a message indicating that the html file has been written to the media 5 Print the information from the storage device used to save it NOTE To exit HP Insight Diagnostics click Exit Diagnostics button in the bottom left corner of the screen then remove the CD from the optical drive Downloading the La...

Page 27: ...covery Point backups To create the Recovery Disc Set 1 Click Start HP Backup and Recovery HP Backup and Recovery Manager to open the Backup and Recovery Wizard then click Next 2 Select Create a set of recovery discs Recommended and click Next 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 operat...

Page 28: ...own management software and works closely with leading management software solution providers in the industry to ensure compatibility between HP Client Management Solutions and these products HP Client Management Solutions are an important aspect of our broad commitment to providing you with solutions that assist you in lowering the total cost of owning and maintaining the PCs throughout their lif...

Page 29: ...tion to help you select the best deployment method The Restore Plus CD ROM based setup and ACPI hardware provide further assistance with recovery of system software configuration management and troubleshooting and power management HP OpenView Agent NOTE HP OpenView Agent is not currently available for Windows Vista The management agent used by both HP OpenView Client Configuration Manager and HP O...

Page 30: ...and set up the system using the software and configuration information located on a network server by initiating the Preboot Execution Environment PXE The Remote System Installation feature is usually used as a system setup and configuration tool and can be used for the following tasks Formatting a hard drive Deploying a software image on one or more new PCs Remotely updating the system BIOS in fl...

Page 31: ...lways attempt to PXE boot Software Updating and Management HP provides several tools for managing and updating software on desktops workstations and notebooks HP Client Management Interface HP System Software Manager HP Client Manager HP ProtectTools Security Manager HP Client Premium Suite HP Client Foundation Suite HP OpenView Client Configuration Manager not currently available for Windows Vist...

Page 32: ... configuration changes to be sent to the system management console application or to the local client computer Alerts are sent real time when triggered by hardware events Manage system BIOS settings Perform F10 functions including setting and changing the BIOS passwords and computer boot order remotely from your system management console on any or all of your client systems without having to visit...

Page 33: ...nitor system health to fix problems before they occur Automatically acquire and install drivers and BIOS updates without visiting each PC Remotely configure BIOS and security settings Automate processes to quickly resolve hardware problems Tight integration with HP Instant Support tools reduces hardware troubleshooting time Diagnostics remotely run view reports on HP desktop notebook and workstati...

Page 34: ...chase from the HP Web site Visit http www hp com products security for more information HP Client Premium Suite HP Client Premium Suite HP CPS is designed for organizations wanting full client hardware and software lifecycle management from a single Web based management console It combines HP Client Manager HP Systems Insight Manager Connector HP OpenView Connector not currently available for Wind...

Page 35: ...ion Management Solution is not currently available for Windows Vista HP OpenView PC Configuration Management Solution is a policy based solution that enables administrators to inventory deploy patch and continuously manage software and content across heterogeneous client platforms With the HP OpenView PC Configuration Management Solution the IT professional can Automate the entire lifecycle manage...

Page 36: ... folders Recovery Points and file backups can be copied to CD or DVD discs while all backups can be copied to network or secondary hard disks HP highly recommends that you create a Recovery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups To create the Recovery Disc Set 1 Click Start HP Backup and Recovery HP Backup and Recovery Manager to open t...

Page 37: ... Resources category click Manuals guides supplements addendums etc Under Quick jump to manuals by category click White papers On Intel vPro branded PCs available management technologies include the following AMT ASF Virtualization Technology VT ASF and AMT may not be configured at the same time but both are supported To configure Intel vPro systems for AMT or ASF 1 Turn on or restart the computer ...

Page 38: ...nView not currently available for Windows Vista Altiris and Microsoft SMS In SMB mode the client provides a Web browser interface To access this feature open a browser from any other system on the network and enter http host_name 16992 where host_name is the name assigned to the system Alternatively the IP address may be used in place of the host name HP Proactive Change Notification The Proactive...

Page 39: ...m go ssm Remote ROM Flash Remote ROM Flash allows the system administrator to safely upgrade the BIOS on remote HP computers directly from the centralized network management console Enabling the system administrator to perform this task remotely on multiple computers results in a consistent deployment of and greater control over HP PC BIOS images over the network It also results in greater product...

Page 40: ...rn on the computer If no appropriate BIOS image is found you will be prompted to insert media containing a BIOS image file If the system successfully reprograms the ROM the system will automatically power off 4 Remove the removable media used to upgrade the BIOS 5 Turn the power on to restart the computer NOTE BitLocker prevents Windows Vista from booting when a CD containing the BIOS image file i...

Page 41: ...dc7xxx PC to a dx7xxx PC This method takes a little longer to prepare the configuration diskette or USB flash media device but copying the configuration to target computers is significantly faster NOTE A bootable diskette is required for this procedure or to create a bootable USB flash media device If Windows XP is not available to use to create a bootable diskette use the method for copying to a ...

Page 42: ...orted USB Flash Media Device on page 33 To create a bootable USB flash media device you must have a supported USB flash media device a bootable DOS diskette with the FDISK and SYS programs If SYS is not available FORMAT may be used but all existing files on the USB flash media device will be lost a PC that is bootable from a USB flash media device CAUTION Some older PCs may not be bootable from a ...

Page 43: ...AUTION Be sure that you have entered the correct drive letter for the USB flash media device FORMAT will display one or more warnings and ask you each time whether you want to proceed Enter Y each time FORMAT will format the USB flash media device 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 U...

Page 44: ...r is 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 pre...

Page 45: ... power 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 interac...

Page 46: ...ols the Smart Cover Sensor and the Smart Cover 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...

Page 47: ...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 Utility Guide on the Documentation and Diagnostics CD for more information Embedded Security Allows you to Enable disable the Embedded Security device Reset the device to Factory Settings This feature is supp...

Page 48: ...access to the computer A network wide setup password can be established to enable the system administrator to log in to all network systems to perform maintenance without having to know the power on password even if one has been established Establishing a Setup Password Using Computer Setup If the system is equipped with an embedded security device refer to the HP ProtectTools Security Manager Gui...

Page 49: ... the password incorrectly a broken key icon appears Try again After three unsuccessful tries you must turn off the computer then turn it on again before you can continue Entering a Setup Password If the system is equipped with an embedded security device refer to the HP ProtectTools Security Manager Guide at http www hp com If a setup password has been established on the computer you will be promp...

Page 50: ... to the National Keyboard Delimiter Characters on page 41 for information about the alternate delimiter characters The power on password and setup password may also be changed using the Security options in Computer Setup Deleting a Power On or Setup Password If the system is equipped with an embedded security device refer to the HP ProtectTools Security Manager Guide at http www hp com 1 Turn on o...

Page 51: ...a security is the paramount concern For such customers the cost of the hard drive and the loss of the data stored on it is inconsequential when compared with the damage that could result from unauthorized access to its contents In order to balance this level of security with the practical need to accommodate a forgotten password the HP implementation of DriveLock employs a two password security sc...

Page 52: ...e user password and regain access to the hard drive HP recommends that corporate system administrators who choose to enable DriveLock also establish a corporate policy for setting and maintaining master passwords This should be done to prevent a situation where an employee intentionally or unintentionally sets both DriveLock passwords before leaving the company In such a scenario the hard drive wo...

Page 53: ... level 4 Before exiting click File Save Changes and Exit Smart Cover Lock The Smart Cover Lock is a software controllable cover lock featured on some HP computers This lock prevents unauthorized access to the internal components Computers ship with the Smart Cover Lock in the unlocked position CAUTION For maximum cover lock security be sure to establish a setup password The setup password prevents...

Page 54: ...able from HP Be prepared order this key before you need oneat an authorized reseller or service provider To obtain the FailSafe Key do any one of the following Contact an authorized HP reseller or service provider Call the appropriate number listed in the warranty For more information about using the Smart Cover FailSafe Key consult the Hardware Reference Guide on the Documentation and Diagnostics...

Page 55: ... drive is tested using DPS and a permanent record of key information is written onto the drive Each time DPS is run test results are written to the hard drive The service provider can use this information to help diagnose conditions that caused you to run the DPS software Refer to the Troubleshooting Guide on the Documentation and Diagnostics CD for instructions on using DPS Surge Tolerant Power S...

Page 56: ...e 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 it tighter than a 30 mm 1 18 in radius The SATA data cable is a thin 7 pin cable designed to transmit data for only a single drive...

Page 57: ...y 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 operating system may differ from that marked on the hard drive or listed in the computer specification Drive size calculations by drive manu...

Page 58: ...oper 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 dx7400 chassis design Microtower MT 48 Chapter 6 Identifying the Chassis Routine Care and...

Page 59: ...grated circuits provide some protection but in many cases the discharge contains enough power to alter device parameters or melt silicon junctions Generating Static The following table shows that Different activities generate different amounts of static electricity Static electricity increases as humidity decreases Relative Humidity Event 55 40 10 Walking across carpet Walking across vinyl floor M...

Page 60: ... sensitive component or assembly Avoid contact with pins leads or circuitry Place reusable electrostatic sensitive parts from assemblies in protective packaging or conductive foam Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment Wrist straps are flexible straps with a maximum of one megohm 10 resistance in the ground cords To pr...

Page 61: ...ductive materials such as ordinary plastic assembly aids and Styrofoam Use field service tools such as cutters screwdrivers and vacuums that are conductive Recommended Materials and Equipment Materials and equipment that are recommended for use in preventing static electricity include Antistatic tape Antistatic smocks aprons or sleeve protectors Conductive bins and other assembly or soldering aids...

Page 62: ...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 functions of the operating system...

Page 63: ...ean debris from under the keys Visible 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 thro...

Page 64: ...equirements 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 Key PN 166527 001 or HP ...

Page 65: ...turn off the computer Do not 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 49 Do not use excessive force when inserting a drive Avoid exposin...

Page 66: ...uter 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 electrical outle...

Page 67: ...Disassembly on page 56 2 Remove the two screws that secure the access panel to the computer chassis 1 3 Slide the access panel back about 1 25 cm 1 2 inch and then lift it away from and off the unit 2 To replace the access panel reverse the removal steps Access Panel 57 ...

Page 68: ...panel Access Panel on page 57 3 Pull outward on all three tabs on the left side of the bezel 1 then rotate the bezel off the chassis 2 beginning with the left side then the right side To reinstall the front bezel reverse the removal procedure 58 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ...

Page 69: ...el on page 57 3 Remove the front bezel Front Bezel on page 58 5 25 inch Drive Bezel Blank While facing the inside of the front bezel press the two retaining tabs on the right toward the outer edge of the bezel 1 and pull the bezel blank inward 2 to remove it To install a bezel blank reverse the removal procedure Bezel Blanks 59 ...

Page 70: ...e retaining tabs on each side of the bezel blank 1 and pull the bezel blank inward to remove it NOTE To install a 3 5 inch bezel blank press the blank inward from the inside of the front bezel so that it snaps into place 60 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ...

Page 71: ...formation 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 sockets have gold metal contacts When upgrading the me...

Page 72: ... 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 the module is fully inserted and properly seated Make sure the latches are in the closed position 3 5 Repeat steps 3 and 4 for any additional modules that you want to install To reassemble the computer reverse the removal procedure 62 Chapter...

Page 73: ...el of the computer remove the screw that secures the slot cover lock in place 1 and slide the slot cover lock up and away from the slots to remove it from the computer 2 4 If you are installing an expansion card for the first time you must use a flatblade screwdriver to pry out the metal shield on the rear panel that covers the expansion slot Be sure to remove the appropriate shield for the expans...

Page 74: ...ile holding the expansion card bracket against the chassis slide the slot cover lock down toward the expansion card brackets and slot covers to secure them in place then replace the screw that secures the slot cover lock 7 Connect external cables to the installed card if needed Connect internal cables to the system board if needed NOTE To remove an expansion card reverse the installation procedure...

Page 75: ...d can 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 the...

Page 76: ... pin System board PWR Power supply 4 pin System board PWRCPU Diskette drive System board FLPY 1st SATA hard drive System board SATA1 2nd SATA hard drive System board SATA3 Primary ODD System board SATA2 Second ODD System board SATA4 Heatsink fan System board CPUFAN1 Chassis fan System board CHFAN1 Front power on button System board JFP1 Front I O USB System board IUSB1 Speaker System board SPKR Fr...

Page 77: ...d install the guide screws on a drive Drive Positions 1 External 5 25 inch half height optical drive bay 2 External 5 25 inch half height option drive bay 3 External 3 5 inch option drive bay media card reader shown 1 4 Internal 3 5 inch bay for optional secondary hard drive 5 Internal 3 5 inch bay for primary hard drive 1 The external 3 5 inch option drive bay accommodates a diskette drive or a m...

Page 78: ...rive 2 SATA2 second optical drive 4 SATA4 2 hard drives 0 optical drives primary hard drive 1 SATA1 secondary hard drive 2 SATA2 2 hard drives 1 optical drive primary hard drive 1 SATA1 secondary hard drive 3 SATA3 optical drive 2 SATA2 2 hard drives 2 optical drives primary hard drive 1 SATA1 secondary hard drive 3 SATA3 first optical drive 2 SATA2 second optical drive 4 SATA4 media card reader 5...

Page 79: ...t side of a new drive The guide screw helps secure the drive in place NOTE If you are installing a drive in the bottom 5 25 inch drive bay remove the metal shield that covers the bay by pressing inward on the silver tab on the left side of the chassis then pulling the shield out from the front of the chassis There are a total of eight extra guide retainer screws on the front of the chassis behind ...

Page 80: ...reverse the removal procedure Refer to the table below for proper retainer and guide screw locations Device Retainer Screws Guide Screws Diskette Drive 2 labeled FDD on chassis 1 front left side of drive Media Card Reader 2 labeled CR on chassis none NOTE If you are installing a drive in the external 3 5 inch drive bay for the first time use a flat blade screwdriver to pry out the metal shield cov...

Page 81: ...56 2 Remove the access panel Access Panel on page 57 3 Disconnect the power and data cables from the back the drive 4 Remove the four retaining screws that secure the drive to the bay 1 5 Slide the drive back and out of the bay 2 To install a new hard drive reverse the removal procedure Drives 71 ...

Page 82: ...pare the computer for disassembly Preparation for Disassembly on page 56 2 Remove the access panel Access Panel on page 57 3 Unplug the ReadyBoost cable from the system board and then lift the card assembly from the chassis To install the ReadyBoost card reverse the removal procedure 72 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ...

Page 83: ... front bezel Front Bezel on page 58 4 Free the two cables from the cable tie that is attached to the chassis 5 Unplug the two cables from the system board 6 Remove the screw 1 that secures the housing to the chassis and then rotate the housing toward the top of the chassis and pull the assembly out of the chassis 2 while guiding the cables through the hole in the chassis To install the housing ass...

Page 84: ...ided cables from the system board 5 Free the braided cables from the cable tie that is attached to the chassis 6 Press down on the top of the switch holder 1 rotate the switch downward 2 and then pull it away from the chassis while guiding the wires through the hole in the chassis To install the power switch assembly reverse the removal procedures 74 Chapter 7 Removal and Replacement Procedures Mi...

Page 85: ... page 58 4 Disconnect the speaker cable from the system board 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 and then remove the speaker by sliding it toward the bottom of the chassis and out of the retaining clips 2 To install the speaker reverse the removal procedure Speaker 75 ...

Page 86: ...cable from the system board 4 Disconnect the serial port cable from the clip 1 mounted on the inside of the chassis 5 Remove the two hex nuts from the outside of the chassis that secure the serial port to the chassis 2 and then remove the serial port To install the serial port reverse the removal procedure 76 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ...

Page 87: ...s that secure the fan to the chassis 1 and then remove the fan from the chassis 2 5 Cut the tie wrap 1 at the bottom of the fan that secures the CPU power cable 2 to the fan To install the fan reverse the removal procedures NOTE When installing the fan the CPU power cable must be plugged into the system board before securing the cable to the bottom of the fan cage This will ensure that the cable i...

Page 88: ...ttom 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 H...

Page 89: ...cket 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 le...

Page 90: ...d 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 System Board 1 Prepare the computer for disassembly Preparation for Disassembly on page 56 2 Remove the access panel Access Panel on page 57 3 Remove the front bezel and lay the computer down on its si...

Page 91: ...l time clock and has a lifetime of about three years When replacing the battery use a battery equivalent to the battery originally installed on the computer The computer comes with a 3 volt lithium coin cell battery NOTE The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket The lithium battery is only used when the computer is NOT connected to AC p...

Page 92: ...bject 1 Prepare the computer for disassembly Preparation for Disassembly on page 56 2 Remove the access panel Access Panel on page 57 NOTE It may be necessary to remove an expansion card to gain access to the battery 3 Locate the battery and battery holder on the system board Type 1 Battery Holder 1 Lift the battery out of its holder 2 Slide the replacement battery into position positive side up 3...

Page 93: ...e your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide Type 3 Battery Holder 1 Pull back on the clip 1 that holds the battery in place then remove the battery 2 2 Insert the new battery and position the clip 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 ...

Page 94: ...t before opening the computer 1 Prepare the computer for disassembly Preparation for Disassembly on page 56 2 Remove the access panel Access Panel on page 57 3 Disconnect all power cables from the mass storage devices and from the system board 4 Cut the tie wrap 1 at the bottom of the fan that secures the CPU power cable 2 to the fan cage NOTE If necessary remove the fan to cut this tie 84 Chapter...

Page 95: ...it out of the computer To install the power supply reverse the removal procedure NOTE When attaching the CPU power cable to the system board use the tie wrap provided in the spares kit to secure the cable to the lower right corner of the fan cage This will prevent the wire bundle from interfering with the system fan blades Power Supply 85 ...

Page 96: ...y lock can be installed on the rear panel of the computer to provide physical computer security NOTE The security lock slot may be in a different location on your computer model 86 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ...

Page 97: ...t are connected to it CAUTION Turn off the computer before disconnecting any cables 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 t...

Page 98: ... the two screws that secure the access panel to the computer chassis 1 3 Slide the access panel back about 1 25 cm 1 2 inch then lift it away from and off the unit 2 To install the access panel reverse the removal procedure 88 Chapter 8 Removal and Replacement Procedures Small Form Factor SFF Chassis ...

Page 99: ...assembly on page 87 2 Remove the access panel Access Panel on page 88 3 Pull up on each of the three tabs on the top of the bezel 1 to release them and then rotate the bezel down and off the chassis 2 To install the front bezel reverse the removal procedure Front Bezel 89 ...

Page 100: ...ve it 2 NOTE To install a 5 25 inch bezel blank slide the left side of the blank into the two retainer slots on the left side of the front bezel then snap the right side of the blank into place 3 5 inch Drive Bezel Blank If the computer was not shipped with a device in the 3 5 inch bay the bay will be covered by a bezel blank If you install a device in the 3 5 inch bay you must first remove the be...

Page 101: ...ease Sharp creases may damage the wires Some flat ribbon cables come prefolded Never change the folds on these cables Do not bend any cable sharply A sharp bend can 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 access panel to push cables down into the chassis Al...

Page 102: ...r Supply Diskette drive P7 Cable To PCA Designator Front LED Power System board JFP1 Speaker System board SPKR Diskette drive System board FLPY Front audio System board AUDIO2 Green Front I O USB System board IUSB1 Yellow Serial port B System board COM B SATA HDD System board SATA1 Dark Blue SATA ODD System board SATA2 White CPU fan System board CPUFAN1 Media card reader System board IUSB2 92 Chap...

Page 103: ... a drive Drive Positions 1 External 3 5 inch option drive bay for media card reader or diskette drive 2 Internal 3 5 inch bay for hard drive 3 External 5 25 inch optical drive bay To verify the type and size of the storage device installed in the computer run Computer Setup Drives 93 ...

Page 104: ...cting drives to the system board Drive Configuration System Board Connectors 1 hard drive 1 optical drive 1 SATA1 hard drive 2 SATA2 optical drive media card reader 3 USB connector white diskette drive 4 FDD connector black 94 Chapter 8 Removal and Replacement Procedures Small Form Factor SFF Chassis ...

Page 105: ...VD Combo drive 1 Prepare the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Remove the front bezel Front Bezel on page 89 4 Rotate the drive cage to the upright position 5 Disconnect the power and data cables from the back of the hard drive 6 Remove the SATA cable from the clip on the bottom of the drive cage Drives 95 ...

Page 106: ...ure External 3 5 inch Media Card Reader or Diskette Drive The 3 5 inch external drive bay may be populated with a media card reader or diskette drive The removal procedure is very similar for both devices 1 Prepare the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Remove the front bezel Front Bezel on page 89 96 Chapter 8 Remova...

Page 107: ... Remove the two retainer screws that secure the drive to the bay 1 and then slide the drive forward and out of the bay 2 To replace the drive reverse the removal procedure NOTE If you are installing a drive in the external 3 5 inch drive bay for the first time use a flat blade screwdriver to pry out the metal shield covering the bay Hard Drive A Torx T 15 screwdriver is needed to remove and instal...

Page 108: ...re the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Remove the front bezel Front Bezel on page 89 4 Rotate the drive cage to the upright position 5 Disconnect the power and data cables from the back of the hard drive 6 Remove the two retainer screws that secure the drive to the bay 1 and then slide the drive back and out of the...

Page 109: ...n 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 Replacing Memory CAUTION The memory module sockets have gold metal contacts When upgrading the memory it is import...

Page 110: ...socket 5 Push the module down into the socket ensuring that the module is fully inserted and properly seated Make sure the latches are in the closed position 3 6 Repeat steps 4 and 5 for any additional modules that you want to install NOTE The computer automatically recognizes the additional memory when the computer is turned on 100 Chapter 8 Removal and Replacement Procedures Small Form Factor SF...

Page 111: ... rotate slot cover up and away from the slots 2 5 If you are installing an expansion card for the first time you must use a flat blade screwdriver to pry out the metal shield on the rear panel that covers the expansion slot Be sure to remove the appropriate shield for the expansion card you are installing Removable Shield Expansion Card Type Top shield PCI Express x16 Second shield PCI Express x1 ...

Page 112: ...an expansion card press firmly on the card so that the whole connector seats properly in the expansion card slot 7 While holding the expansion card bracket against the chassis rotate the slot cover lock over the expansion card brackets and slot covers Push the slot cover lock down to latch it and secure the card brackets 8 Connect external cables to the installed card if needed Connect internal ca...

Page 113: ...ove the access panel Access Panel on page 88 3 Remove the cable from the clips on top of the power supply 1 4 Remove the two hex nuts that secure the port to the chassis 2 and then remove the serial port from the chassis 3 To install the serial port reverse the removal procedures Serial Port 103 ...

Page 114: ... the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Unplug the ReadyBoost cable from the system board and then lift the card assembly from the chassis To install the ReadyBoost card reverse the removal procedure 104 Chapter 8 Removal and Replacement Procedures Small Form Factor SFF Chassis ...

Page 115: ...s below the drive cage and on the power supply See the following illustration for proper routing of these wires To loosen the fastener on the chassis floor 1 Prepare the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Rotate the drive cage to its upright position 4 Pull up on the top of the fastener to open it Opening the fastener...

Page 116: ...em board 6 Rotate the drive cage back down 7 Remove the screw that secures the front I O device to the chassis 1 8 Rotate the device toward the right side of the chassis when viewed from the front and then pull the device from the chassis 2 while threading the wires through the hole in the chassis NOTE If necessary rotate the drive cage back up to better access the hole you thread the cables throu...

Page 117: ...on 5 Disconnect the power switch wires from the system board 6 From the inside of the chassis press the tab on the bottom of power button assembly to loosen the assembly 1 7 If necessary rotate the drive cage back down to gain access to the wires 8 Pull the assembly out through front of unit 2 while threading the wires through the hole in the chassis To install the power switch assembly reverse th...

Page 118: ...ccess to the speaker wire 5 Disconnect the speaker wire from the system board 6 If necessary remove expansion cards to gain access to the speaker 7 Remove the screw that secures the speaker to the inside of the chassis 1 slide the speaker to the right 2 and then remove it from the chassis 3 To install the speaker reverse the removal procedures 108 Chapter 8 Removal and Replacement Procedures Small...

Page 119: ... them may require replacing the system board 5 Lift the heatsink from atop the processor 2 and set it on its side to keep from contaminating the work area with thermal grease When reinstalling the heatsink make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor CAUTION Heatsink retaining screws should be tightened in dia...

Page 120: ...e the heatsink Heatsink on page 109 4 Disconnect the heatsink fan cable from the system board 5 Remove the four screws that secure the fan to the front of the heatsink 1 and then remove the fan from the heatsink 2 To install the heatsink fan reverse the removal procedure 110 Chapter 8 Removal and Replacement Procedures Small Form Factor SFF Chassis ...

Page 121: ...nstalling 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 lever If reusing the existing heatsink go to step 3 If using a new heatsink go to step 6 3 If reusing the existing heatsink clean the bottom of the heatsink with the alcohol pad provided in the spares kit CAUTION ...

Page 122: ... latest version of the BIOS is being used on the computer The latest system BIOS can be found on the Web at http h18000 www1 hp com support files Power Supply 1 Prepare the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Access Panel on page 88 3 Remove the front bezel Front Bezel on page 89 4 Rotate the drive cage to its upright position 5 Loosen the plas...

Page 123: ...ortant to secure the system board and tray to the chassis with the long retaining screw before performing any subsequent steps CAUTION When reconnecting the cables it is important that they be positioned so they do not interfere with the rotation of the drive cage or power supply System Board 1 Prepare the computer for disassembly Preparation for Disassembly on page 87 2 Remove the access panel Ac...

Page 124: ...lcohol has evaporated apply thermal grease to the top of the processor from the syringe supplied in the spares kit NOTE When reinstalling the system board it is important to secure the system board and tray to the chassis with the long retaining screw before performing any subsequent steps CAUTION When reconnecting the cables it is important that they be positioned so they do not interfere with th...

Page 125: ...he 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 Computer Setup F10 Utility Guide for information on backing up the CMOS settings NOTE HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs ...

Page 126: ...etups using Computer Setup Refer to the Computer Setup F10 Utility Guide Type 2 Battery Holder 1 To release the battery from its holder squeeze the metal clamp that extends above one edge of the battery When the battery pops up lift it out 1 2 To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up 2 Push the other edge down until the cl...

Page 127: ... Battery Holder 1 Pull back on the clip 1 that holds the battery in place then remove the battery 2 2 Insert the new battery and position the clip 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 Battery ...

Page 128: ...ck can be installed on the rear panel of the computer to provide physical computer security NOTE The security lock slot may be in a different location on your computer model 118 Chapter 8 Removal and Replacement Procedures Small Form Factor SFF Chassis ...

Page 129: ...Some 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 Keyboard 119 ...

Page 130: ...in 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 120 Appendix A Connector Pin Assignments ...

Page 131: ...a Bit 5 Data Bit 6 14 15 16 17 Auto 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 Parallel Interface 121 ...

Page 132: ... Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_left Audio_Right Ground Headphone Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 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 122 Appendix A Connector Pin Assignments ...

Page 133: ...tor and Icon Pin Signal 1 2 3 4 Transmit Receive Ground 5V 5 6 7 8 Mode Not Used Not Used Not 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 Line out Audio 123 ...

Page 134: ...irection In Ground Step 29 30 31 32 Ground Read Data Ground Side 1 Select 9 10 11 12 Ground Reserved Ground Drive Select 21 22 23 24 Ground Write data Ground Write Gate 33 34 Ground Disk Change 24 Pin Power Connector 24 12 13 1 Front 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...

Page 135: ... 11 12 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 24 Pin MicroFit Power 125 ...

Page 136: ...A 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 ...

Page 137: ... 1 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 G...

Page 138: ...2 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 10 11 12 T M D ...

Page 139: ...ited agency responsible for evaluation in the country where the 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...

Page 140: ... fittings appliance coupler and wall plug must bear the certification 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 ...

Page 141: ...es Enabled mode during POST press any key except F10 or F12 The default mode is POST Message Disabled The speed at which the computer loads the operating system and the extent to which it is tested are determined by the POST mode selection Quick Boot is a fast startup process that does not run all of the system level tests such as the memory test Full Boot runs all of the ROM based system tests an...

Page 142: ...emove 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 server 3 Ensure the ACPI USB Buffers Top of Memory setting in Computer S...

Page 143: ...eplacing 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 module type 2 Try another memory socket 3 Replace DIMM with a module conforming to the SPD standard 214 DIMM Configuration Warning Popula...

Page 144: ... 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 CPU CPUA or CPUB Fan not Detected CPU fan is not connected or may have malfunctioned 1 Reseat CPU fan 2 Resea...

Page 145: ...h 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 system 1151 Serial Port A Address Conflict Detected Both external and internal serial ports are assigned to COM1 1 Remove any serial port expansion cards 2 Clear CMOS 3 Reconfigure card resources and or run Computer Setup or Windows utili...

Page 146: ...ge 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 is Disabled Lastly change Storage Storage Options SATA Emulation back to RAID and select File Save Changes and Exit 1801 Microcode Patch Error Processor is not supported by ROM BIOS 1 Upgrade BIOS to proper versio...

Page 147: ...on 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 2 If the error persists update to the latest BIOS version 3 If the...

Page 148: ...r flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes Recommended actions in the following table are listed in the order in which they should be performed Not all diagnostic lights and audible codes are available on all models Table C 2 Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action...

Page 149: ... system board OR The USDT power supply adapter must be at 135W and use the Smart ID technology before the system will power up Replace the power supply adapter with the HP supplied USDT power supply adapter Red Power LED flashes five times once every second followed by a two second pause Beeps stop after fifth iteration but LEDs continue until problem is solved 5 Pre video memory error CAUTION To ...

Page 150: ...ard 1 Check each option card by removing the card one at a time if multiple cards then power on the system to see if fault goes away 2 Once a bad card is identified remove and replace the bad option card 3 Replace the system board Red Power LED flashes eleven times once every second followed by a two second pause Beeps stop after fifth iteration but LEDs continue until problem is solved 11 The cur...

Page 151: ...hen replace the power button harness If the problem persists replace the system board 5 If the 5V_aux light on the system board is not turned on remove the expansion cards one at a time until the 5V_aux light on the system board turns on It the problem persists replace the power supply Table C 2 Diagnostic Front Panel LEDs and Audible Codes continued Interpreting POST Diagnostic Front Panel LEDs a...

Page 152: ...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 12 for more information Run the Drive Protection System DPS Self Test in Computer Setup Refer to the Computer Setup F10 Utility Guide for mor...

Page 153: ...s recently added to your system Remove any software that was recently installed Restore the system from the Recovery Disc Set that you created or restore the system to its original factory condition in HP Backup and Recovery Manager CAUTION Restoring the system will erase all data on the hard drive Be sure to back up all data files before running the restore process NOTE For sales information and ...

Page 154: ...re 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 embedded PCI or PCI Express adapters installed embedded video on s...

Page 155: ...B keyboard or mouse Cause Solution Computer is in standby mode To resume from standby mode press the power button or press any key 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 System has locked up Restart computer Computer date and time display is incorrect C...

Page 156: ...t key Poor performance is experienced Cause Solution Processor is hot 1 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 2 Make sure fans are connected and working properly some fans only operate when needed 3 Make sure the processor heatsink is installed properly Hard drive is...

Page 157: ...ed and the processor cooling fan is running 2 Open hood press 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 3 If fan is plugged in but is not spinning then replace the heatsink fan assembly 4 Contact an authorized reseller or service provider System does not power on and the LEDs on the front o...

Page 158: ...y will not turn on because of internal power supply fault Contact an authorized service provider to replace the power supply Computer powered off automatically and the Power LED flashes Red two times once 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 fa...

Page 159: ...ply adapter is being used on the USDT The USDT power supply adapter must be at 135W and use the Smart ID technology before the system will power up Replace the power supply adapter with the HP supplied USDT power supply adapter Solving Diskette Problems Common causes and solutions for diskette problems are listed in the following table NOTE You may need to reconfigure the computer when you add or ...

Page 160: ...the wrong drive Check the drive letter in the path statement Not enough space is left on the diskette 1 Use another diskette 2 Delete unneeded files from diskette Legacy diskette writes are disabled in Computer Setup Enter Computer Setup and enable Legacy Diskette Write in Storage Storage Options Diskette is damaged Replace the damaged disk Cannot format diskette Cause Solution Invalid media repor...

Page 161: ...he system files needed to start the computer has been inserted in the drive When drive activity stops remove the diskette and press the Spacebar The computer should start up Diskette error has occurred Restart the computer by pressing the power button Cannot Boot to Diskette Cause Solution Diskette is not bootable Replace with a bootable diskette Diskette boot has been disabled in Computer Setup 1...

Page 162: ... on a drive Select Properties then select the Tools tab Under Error checking click Check Now 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 163 section If the system still does not recognize the new de...

Page 163: ... connector labeled P60 SATA 0 Bootable hard drive s controller is not listed first in the Boot Order Run the Computer Setup utility and select Storage Boot Order and ensure the bootable hard drive s controller is listed immediately under the Hard Drive entry Computer will not boot from hard drive Cause Solution The device is attached to a SATA port that has been hidden in Computer Setup Run the Co...

Page 164: ...is does not solve the problem turn off the computer remove the carrier and check to see if the connector on the hard drive is properly seated in the carrier The removable hard drive enclosure is beeping and the green LED is flashing Cause Solution Fan failure alarm on the removable hard drive enclosure has been activated Shut down the computer and contact HP for a replacement enclosure Solving Med...

Page 165: ...t if inserted properly Do not know how to remove a media card correctly Cause Solution The computer s software is used to safely eject the card Open My Computer Windows XP or Computer Windows Vista right click on the corresponding drive icon and select Eject Then pull the card out of the slot NOTE Never remove the card when the green LED is flashing After installing the media card reader and booti...

Page 166: ... as the 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 If the computer system has both an integrated graphics conn...

Page 167: ...ard 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 doe...

Page 168: ...e 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 monitor s 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 C...

Page 169: ...igital 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 the synchronization go to the following Web site select the appropriate monit...

Page 170: ... Turn on the external speakers The audio device may be connected to the wrong jack Ensure that the device is connected to the correct jack on the computer The speakers should be plugged into the rear line out jack and the headphones should be plugged into the front headphone jack External speakers plugged into the wrong audio jack on a recently installed sound card See the sound card documentation...

Page 171: ... you encounter printer problems see the documentation that came with the printer and to the common causes and solutions listed in the following table Table D 8 Solving Printer Problems Printer will not print Cause Solution Printer is not turned on and online Turn the printer on and make sure it is online The correct printer drivers for the application are not installed 1 Install the correct printe...

Page 172: ...not properly connected 1 On the Windows XP Desktop click Start Shut Down On the Windows Vista Desktop click Start click the arrow on the lower right corner of the Start menu then select Shut Down 2 After the shutdown is complete reconnect the keyboard to the back of the computer and restart the computer Program in use has stopped responding to commands Shut down your computer using the mouse and t...

Page 173: ...the internal components Mouse may need repair See the Worldwide Limited Warranty for terms and conditions Wireless device error 1 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 bu...

Page 174: ...e computer and follow the instructions for accepting the changes A plug and play board may not automatically configure when added if the default configuration conflicts with other devices Use Windows Device Manager to deselect the automatic settings for the board and choose a basic configuration that does not cause a resource conflict You can also use Computer Setup to reconfigure or disable devic...

Page 175: ...hics 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 two second pause and the computer beeps ten times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution Bad option card 1 Check each option c...

Page 176: ...a Connection 5 Click the Properties button 6 Click the Configure button 7 Click the Power Management tab then select the check box to Allow this device to wake the computer 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 Incor...

Page 177: ...onnector There is a problem with the cable or a device at the other end of the cable Ensure that the cable and device at the other end are operating correctly Network controller interrupt is shared with an expansion board Under the Computer Setup Advanced menu change the resource settings for the board The network controller is defective Contact an authorized service provider Diagnostics passes bu...

Page 178: ...of the cable is securely attached to the correct device The network controller is defective Contact an authorized service provider New network card will 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 attemp...

Page 179: ... in the black XMM1 or DIMM1 socket on the system board This socket must be populated with a memory module Memory module is not the correct type or speed grade for the system or the new memory module is not seated properly Replace module 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 ...

Page 180: ...d 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 Power LED flashes Red eleven times once every second followed by a two se...

Page 181: ...ns in the Solving Hardware Installation Problems on page 163 section If the system still does not recognize the new device check to see if 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 Ad...

Page 182: ...rmine 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 available from most computer stores Windows does not detect the CD ROM or DVD ROM drive 1 Use Device Manager to remove or uninstall the device 2 Restart the computer and let Windows detect the CD or DVD driver Recording ...

Page 183: ...er 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 Storage Options Ensure USB is enabled in Storage Boot Order The image on the devi...

Page 184: ...or refer to the common causes and solutions listed in the following table Table D 18 Solving Internet Access Problems Unable to connect to the Internet Cause Solution Internet Service Provider ISP account is not set up properly Verify Internet settings or contact your ISP for assistance Modem is not set up properly Reconnect the modem Verify the connections are correct using the quick setup docume...

Page 185: ...Options 3 On the General tab click the Delete Cookies button Cannot automatically launch Internet programs Cause Solution You must log on to your ISP before some programs will start Log on to your ISP and launch the desired program Internet takes too long to download Web sites Cause Solution Modem is not set up properly Verify that the modem is connected and communicating properly Windows XP 1 Sel...

Page 186: ...ce drivers have been installed If you have installed an operating system other than the factory installed operating system check to be sure it is supported on the system If you encounter software problems see the applicable solutions listed in the following table Table D 19 Solving Software Problems Computer will not continue and no HP logo screen has appeared Cause Solution POST error has occurre...

Page 187: ... programs and restart the computer Contacting Customer Support For help and service contact an authorized reseller or dealer To locate a reseller or dealer near you visit http www hp com NOTE If you take the computer to an authorized reseller dealer or service provider for service remember to provide the setup and power on passwords if they are set Refer to the number listed in the warranty or in ...

Page 188: ... LED CR35 E14 E15 E16 E25 E49 JP49 Hard drive activity LED Boot block header jumper Boot block recovery header ROM recovery header CPLD programming header Clear Password header jumper E50 J7 J9 J10 J11 Clear CMOS header RJ45 jack Stacked RJ45 Dual USB Quad stacked USB First IEEE 1394 connector J12 J13 J14 J20 29 Second IEEE 1394 connector SPDIF input SPDIF output PCI slots 178 Appendix E System Bo...

Page 189: ...ouse connector PS 2 J68 J69 J70 J71 J72 Stacked mouse Top keyboard Bottom connector Video connector VGA Primary single USB connector Secondary single USB port Microphone jack J73 J74 J75 J76 J77 Line in jack Line out jack Headphone jack Volume control Double stacked headphone Bottom microphone Top connector J78 J80 J81 J82 J83 Double stacked line in Top line out Bottom connector Stacked serial aud...

Page 190: ...ink fan Secondary chassis fan header Diskette drive connector Auxiliary Audio connector P12 P13 P15 P16 P17 Alert on LAN connector VRM module footprint AUI connector Fan command fan sink header may be 2 or 4 pin Digital audio expansion header P18 P19 P20 P21 P22 SPDIF internal input header SPDIF internal output header Primary IDE connector Secondary IDE MultiBay connector Header for NEWCARD P23 P2...

Page 191: ...Serial ATA SATA connector Eighth Serial ATA SATA connector Primary CPU fan header for fansink Secondary CPU fan header for fansink P80 P81 P82 P83 P84 Primary Serial Attached SCSI SAS connector Second Serial Attached SCSI SAS connector Third Serial Attached SCSI SAS connector Fourth Serial Attached SCSI SAS connector Fifth Serial Attached SAS connector P85 P86 P87 P101 P106 Sixth Serial Attached S...

Page 192: ...rallel port diode array First serial port transceiver U32 U46 U50 U51 U52 Second serial port transceiver VRM controller USB front port power switch First USB rear port power switch Second USB rear port power switch U53 XBT XMM1 XMM2 XMM5 XU1 Third USB rear port power switch Battery retainer Memory slot DIMM1 or RIMM1 populated and tested Following memory slots Primary processor socket XU2 XU15 U15...

Page 193: ...Y1 Y2 Primary TH system clock crystal Secondary SMT system clock crystal Y3 Y4 Y5 H5 Primary NIC clock crystal Secondary NIC clock crystal RTC clock crystal tie down 183 ...

Page 194: ...l blank 3 5 inch MT drive 60 3 5 inch SFF drive 90 5 25 inch MT drive 59 5 25 inch SFF drive 90 bezel blank SFF installing 3 5 inch 90 5 25 inch 90 bezel blanks MT removal and replacement 59 SFF removal and replacement 90 BIOS Boot Block Emergency Recovery Mode 29 HPQFlash 29 Remote ROM Flash 29 Boot Block Emergency Recovery Mode 29 boot problems 172 bootable device creating 32 DiskOnKey 32 33 HP ...

Page 195: ...ing power on password 39 setup password 39 error codes 131 138 messages 132 ethernet AUI pin assignments 120 BNC pin assignments 119 RJ 45 pin assignments 120 expansion cards MT removal and replacement 63 SFF removal and replacement 101 external 3 5 inch media card reader or diskette drive SFF removal and replacement 96 F FailSafe Key caution 44 ordering 44 fan MT removal and replacement 77 power ...

Page 196: ... panel removal and replacement 57 battery removal and replacement 81 bezel blanks removal and replacement 59 cable connections 66 cable management 65 chassis illustrated 48 drive removal and replacement 67 expansion cards removal and replacement 63 fan removal and replacement 77 front bezel removal and replacement 58 front I O device removal and replacement 73 heatsink removal and replacement 78 m...

Page 197: ...ry creating disc recovery set 2 Recovery Mode Boot Block Emergency 29 recovery software 19 reference designators 178 Remote ROM Flash 29 remote setup 20 21 Remote System Installation 20 21 removal and replacement MT 3 5 inch drive 70 MT 3 5 inch hard drive 71 MT 5 25 inch drive 69 MT access panel 57 MT battery 81 MT bezel blanks 59 MT drives 67 MT expansion cards 63 MT fan 77 MT front bezel 58 MT ...

Page 198: ...upply removal and replacement 112 power switch assembly removal and replacement 107 preparation for disassembly 87 processor removal and replacement 111 ReadyBoost card removal and replacement 104 serial port removal and replacement 103 speaker removal and replacement 108 system board connections 92 system board removal and replacement 113 Smart Cover FailSafe Key ordering 44 Smart Cover Lock Fail...

Page 199: ...ature 166 Web sites BIOS download 29 Fingerprint Identification Technology 44 HP Client Foundation Suite 24 HP Client Foundation Suite and Client Premium Suite 20 HP Client Manager 23 HP Client Premium Suite 24 HP OpenView Client Configuration Manager 25 HP OpenView PC Configuration Management Solution 19 25 HP ProtectTools Security Manager 24 HP white papers 27 HPQFlash 29 Intel vPro technology 2...

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HP Compaq dx7400, Service & Reference Manual

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Summary of Contents for Compaq dx7400

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