HP dc5750 manual Install the video drivers included in the upgrade kit

Page 30

Table 2-6Solving Display Problems (continued)

Blurry video or requested resolution cannot be set.

Cause

Solution

 

 

If the graphics controller was upgraded, the correct graphics

Install the video drivers included in the upgrade kit.

drivers may not be loaded.

 

 

 

 

Monitor is not capable of displaying requested resolution.

Change requested resolution.

 

 

Graphics card is bad.

Replace the graphics card.

 

 

 

The picture is broken up, rolls, jitters, or flashes.

 

 

 

 

Cause

Solution

 

 

The monitor connections may be incomplete or the monitor

1. Be sure the monitor cable is securely connected to the

may be incorrectly adjusted.

 

computer.

 

2.

In a two-monitor system or if another monitor is in close

 

 

proximity, be sure the monitors are not interfering with

 

 

each other’s electromagnetic field by moving them apart.

 

3.

Fluorescent lights or fans may be too close to 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” displays on screen.

Cause

Solution

 

 

Monitor video cable is disconnected.

Connect the video cable between the monitor and computer.

CAUTION Ensure that the computer power is off while connecting the video cable.

“Out of Range” displays on screen.

Cause

Solution

 

 

Video resolution and refresh rate are set higher than what the monitor supports.

Restart the computer and enter Safe Mode. Change the settings to a supported setting then restart the computer so that the new settings take effect.

24 Chapter 2 Troubleshooting Without Diagnostics

ENWW

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Contents Troubleshooting Guide dc5750 Models Troubleshooting Guide Iii Iv About This Book Table of contents Appendix B Password Security and Resetting Cmos Accessing DPS Through Computer SetupHP Insight Diagnostics HP Insight DiagnosticsSurvey Tab Status Tab Log Tab Protecting the Software Select a language and click DownloadProtecting the Software Restoring the Software Safety and Comfort Before You Call for Technical Support Safety and ComfortHelpful Hints Helpful Hints Solving General Problems 1Solving General ProblemsComputer date and time display is incorrect Cause Solution Solving General Problems There is no sound or sound volume is too low Cause SolutionPoor performance is experienced Cause Solution Cause Solution Enww Solving Power Problems 2Solving Power ProblemsPower supply shuts down intermittently Cause Solution Solving Diskette Problems Solving Diskette Problems3Solving Diskette Problems Diskette drive cannot read a diskette Cause Solution Cannot format diskette Cause SolutionProblem has occurred with a disk transaction Cause Solution Invalid system disk message is displayed Cause SolutionOverrides the Boot Order enable command Security Password OptionsSolving Hard Drive Problems 4Solving Hard Drive ProblemsComputer will not boot from hard drive Cause Solution Solving Hard Drive ProblemsStorage Boot Order list Device ConfigurationCan not write to the media card Cause Solution Solving Media Card Reader Problems5Solving Media Card Reader Problems Computer’s software is used to safely eject the cardSolving Media Card Reader Problems Solving Display Problems 6Solving Display ProblemsBlank screen no video Cause Solution Solving Display Problems Dim characters Cause SolutionAdjust the horizontal or vertical position of the image Install the video drivers included in the upgrade kitImage is not centered Cause Solution Out of Range displays on screen Cause SolutionCertain typed symbols do not appear correct Cause Solution Solving Audio Problems 7Solving Audio ProblemsSound cuts in and out Cause Solution Properties Solving Audio ProblemsOn the Properties tab, make sure Enable digital CD Audio for this CD-ROM device is checkedSolving Printer Problems 8Solving Printer Problems9Solving Keyboard Problems Solving Keyboard and Mouse ProblemsSolving Keyboard and Mouse Problems 10Solving Mouse ProblemsOption and then press the Enter key After the shutdown is complete, plug the mouseRestart 11 Solving Hardware Installation Problems Solving Hardware Installation ProblemsSolving Hardware Installation Problems Computer will not start Cause SolutionOnce bad card is identified, remove and replace bad 11Solving Hardware Installation ProblemsGoes away Option card12Solving Network Problems Solving Network ProblemsSolving Network Problems Wake-on-LAN feature is not functioning Cause SolutionDiagnostics reports a failure Cause Solution Network status link light never flashesNew network card will not boot Cause Solution Out of memory error Cause Solution Solving Memory Problems13Solving Memory Problems Memory count during Post is wrong Cause SolutionSolving Memory Problems Some fans only operate when needed Solving Processor Problems14Solving Processor Problems Make sure the processor heatsink is installed properly15Solving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsSolving CD-ROM and DVD Problems Mode in Security Password OptionsMovie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit Cause SolutionEnww USB Drive Key not found identified Cause Solution Solving Drive Key Problems16Solving Drive Key Problems System will not boot from USB Drive Key Cause SolutionSolving Front Panel Component Problems Solving Front Panel Component Problems17Solving Front Panel Component Problems Solving Internet Access Problems 18Solving Internet Access ProblemsUnable to connect to the Internet Cause Solution Solving Internet Access Problems Double-clickPorts COM & LPTSolving Software Problems 19Solving Software ProblemsContacting Customer Support Contacting Customer SupportEnww Post Error Messages Table A-1Numeric Codes and Text Messages Appendix a Post Error MessagesPost Numeric Codes and Text Messages Control panel message Description Recommended actionPost Numeric Codes and Text Messages Advanced Onboard Devices Control panel message Description Replace diskette driveUnder Storage DPS Self-test Problem Problem goes away Network Server Mode Active and No Emulation back to RAID and select FileSave Changes and Exit Table A-2Diagnostic Front Panel LEDs and Audible Codes Is not spinning, make sure the fans cable isActivity Beeps Possible Cause Recommended Action Properly connected to the system board Check that both power supply cables areProblem persists, replace the system board Check to see if the 5Vaux light onCmos Resetting the Password Jumper Clearing and Resetting the Cmos Using Computer Setup to Reset CmosFigure B-1 Cmos switch Drive Protection System DPS Accessing DPS Through Computer Setup Select Storage DPS Self-TestIndex IndexEnww
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