HP dc5750 manual Solving Hardware Installation Problems, Computer will not start Cause Solution

Page 37

Solving Hardware Installation Problems

You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows XP automatically recognizes the device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware. In Windows XP, use the Add Hardware Wizard and follow the instructions that appear on the screen.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Look for the LED on the system board. If the LED is illuminated, the system still has power. Power off the computer and remove the power cord before proceeding.

Table 2-11Solving Hardware Installation Problems

 

A new device is not recognized as part of the system.

 

 

 

Cause

Solution

 

 

Device is not seated or connected properly.

Ensure that the device is properly and securely connected and

 

that pins in the connector are not bent down.

 

 

Cable(s) of new external device are loose or power cables are

Ensure that all cables are properly and securely connected and

unplugged.

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,

Reboot the computer and follow the instructions for accepting

you did not accept them.

the changes.

 

 

A plug and play board may not automatically configure when

Use Windows XP Device Manager to deselect the automatic

added if the default configuration conflicts with other devices.

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 devices to resolve the resource

 

conflict.

 

 

USB ports on the computer are disabled in Computer Setup.

Enter Computer Setup (F10) and enable the USB ports.

 

 

Computer will not start.

 

 

 

Cause

Solution

 

 

Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location.

1.Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation.

2.Observe the beeps and LED lights on the front of the computer. Beeps and flashing LEDs are codes for specific problems.

3.If you still cannot resolve the issue, contact Customer Support.

ENWW

Solving Hardware Installation Problems 31

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Contents Troubleshooting Guide dc5750 Models Troubleshooting Guide Iii Iv About This Book Table of contents Accessing DPS Through Computer Setup Appendix B Password Security and Resetting CmosHP Insight Diagnostics HP Insight DiagnosticsSurvey Tab Status Tab Log Tab Select a language and click Download Protecting the SoftwareProtecting the Software Restoring the Software Safety and Comfort Safety and Comfort Before You Call for Technical SupportHelpful Hints Helpful Hints 1Solving General Problems Solving General ProblemsComputer date and time display is incorrect Cause Solution There is no sound or sound volume is too low Cause Solution Solving General ProblemsPoor performance is experienced Cause Solution Cause Solution Enww 2Solving Power Problems Solving Power ProblemsPower supply shuts down intermittently Cause Solution Solving Diskette Problems Solving Diskette Problems3Solving Diskette Problems Problem has occurred with a disk transaction Cause Solution Cannot format diskette Cause SolutionDiskette drive cannot read a diskette Cause Solution Invalid system disk message is displayed Cause SolutionSecurity Password Options Overrides the Boot Order enable command4Solving Hard Drive Problems Solving Hard Drive ProblemsStorage Boot Order list Solving Hard Drive ProblemsComputer will not boot from hard drive Cause Solution Device Configuration5Solving Media Card Reader Problems Solving Media Card Reader ProblemsCan not write to the media card Cause Solution Computer’s software is used to safely eject the cardSolving Media Card Reader Problems 6Solving Display Problems Solving Display ProblemsBlank screen no video Cause Solution Dim characters Cause Solution Solving Display ProblemsImage is not centered Cause Solution Install the video drivers included in the upgrade kitAdjust the horizontal or vertical position of the image Out of Range displays on screen Cause SolutionCertain typed symbols do not appear correct Cause Solution 7Solving Audio Problems Solving Audio ProblemsSound cuts in and out Cause Solution On the Properties tab, make sure Enable digital CD Solving Audio ProblemsProperties Audio for this CD-ROM device is checked8Solving Printer Problems Solving Printer ProblemsSolving Keyboard and Mouse Problems Solving Keyboard and Mouse Problems9Solving Keyboard Problems 10Solving Mouse ProblemsAfter the shutdown is complete, plug the mouse Option and then press the Enter keyRestart Solving Hardware Installation Problems Solving Hardware Installation Problems11 Solving Hardware Installation Problems Computer will not start Cause SolutionGoes away 11Solving Hardware Installation ProblemsOnce bad card is identified, remove and replace bad Option cardSolving Network Problems Solving Network Problems12Solving Network Problems Wake-on-LAN feature is not functioning Cause SolutionNetwork status link light never flashes Diagnostics reports a failure Cause SolutionNew network card will not boot Cause Solution 13Solving Memory Problems Solving Memory ProblemsOut of memory error Cause Solution Memory count during Post is wrong Cause SolutionSolving Memory Problems 14Solving Processor Problems Solving Processor ProblemsSome fans only operate when needed Make sure the processor heatsink is installed properlySolving CD-ROM and DVD Problems Solving CD-ROM and DVD Problems15Solving CD-ROM and DVD Problems Mode in Security Password OptionsCannot eject compact disc tray-load unit Cause Solution Movie will not play in the DVD drive Cause SolutionEnww 16Solving Drive Key Problems Solving Drive Key ProblemsUSB Drive Key not found identified Cause Solution System will not boot from USB Drive Key Cause SolutionSolving Front Panel Component Problems Solving Front Panel Component Problems17Solving Front Panel Component Problems 18Solving Internet Access Problems Solving Internet Access ProblemsUnable to connect to the Internet Cause Solution Double-clickPorts COM & LPT Solving Internet Access Problems19Solving Software Problems Solving Software ProblemsContacting Customer Support Contacting Customer SupportEnww Post Error Messages Post Numeric Codes and Text Messages Appendix a Post Error MessagesTable A-1Numeric Codes and Text Messages Control panel message Description Recommended actionPost Numeric Codes and Text Messages Advanced Onboard Devices Replace diskette drive Control panel message DescriptionUnder Storage DPS Self-test Emulation back to RAID and select File Problem Problem goes away Network Server Mode Active and NoSave Changes and Exit Is not spinning, make sure the fans cable is Table A-2Diagnostic Front Panel LEDs and Audible CodesActivity Beeps Possible Cause Recommended Action Problem persists, replace the system board Check that both power supply cables areProperly connected to the system board Check to see if the 5Vaux light onCmos Resetting the Password Jumper Using Computer Setup to Reset Cmos Clearing and Resetting the CmosFigure B-1 Cmos switch Drive Protection System DPS Select Storage DPS Self-Test Accessing DPS Through Computer SetupIndex IndexEnww
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