Dell H7228 manual Power Problems

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IF YOU HAVE PROBLEMS WITH A DELL-PROVIDED PC CARD — Contact Dell (see page 83).

IF YOU HAVE PROBLEMS WITH A PC CARD NOT PROVIDED BY DELL — Contact the PC card manufacturer.

Power Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

ADJUST THE POWER PROPERTIES — Your computer may be in standby or hibernate mode. For information on power conservation modes, see the Tell Me How help file, or search for the keyword standby or hibernate in the Windows XP Help and Support Center. To access help files, see page 25.

IF THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT RESPONDING — See "Diagnostic Lights" on page 43.

IF THE POWER LIGHT IS BLINKING GREEN — The computer is in standby mode. Press a key on the keyboard or move the mouse to resume normal operation.

IF THE POWER LIGHT IS OFF — The computer is either turned off or is not receiving power.

•Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.

•If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and that the power strip is turned on.

•Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

•Bypass power protection devices, power strips, and power extension cables to verify that the computer turns on.

•Ensure that the main power cable is securely connected to the system board (see page 61).

•Ensure that the front panel cable is securely connected to the system board (see page 61).

•If the problem persists, contact Dell (see page 83).

IF THE POWER LIGHT IS STEADY AMBER — The computer is receiving electrical power, but an internal power problem might exist.

•Ensure that the microprocessor power cable is securely connected to the system board (see page 61).

•Remove and then reinstall the memory modules (see page 68).

•Remove and then reinstall any cards (see page 62).

•If the problem persists, contact Dell (see page 83).

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Solving Problems

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Contents Dell Dimension 4600C USB 2.0 connectors Ieee 1394 connectorAbbreviations and Acronyms Contents Mail, Modem, and Internet Problems Program is designed for an earlier Microsoft WindowsUsing Microsoft Windows XP System Restore Resolving Software and Hardware IncompatibilitiesAppendix Safety Instructions Safety InstructionsW . d e l l . c o m s u p p o r t . d e l l . c o m Tips on using Windows How to clean my computerFinding Information for Your Computer Microsoft Windows License LabelAnswers to technical service Downloads Drivers, patches, and software updatesHow to use Windows XP Support questionsConnecting the AC Adapter Japan only Setting Up and Using Your ComputerTabs Tab holes Setting Up and Using Your Computer Attaching and Removing the Computer StandScrew Setting Up a Printer Connecting a Parallel Printer Parallel connector on computerPrinter Cable Screws Clips Parallel printer Cable NotchesConnecting a USB Printer USB connector on computerConnecting an Ieee 1394 Device Optional Setting Up a Home and Office NetworkConnecting to a Network Adapter Ieee 1394 connector Ieee 1394 cableNetwork Setup Wizard Network cableConnecting to the Internet Setting Up Your Internet ConnectionHow to Copy a CD or DVD Copying CDs and DVDsUsing Blank CD-Rs and CD-RWs Hyper-ThreadingHelpful Tips Booting to a USB Device Turning Off Your ComputerSetting Up and Using Your Computer Finding Solutions Solving ProblemsW . d e l l . c o m s u p p o r t . d e l l . c o m See Battery Problems Finding Help InformationDrive Problems CD drive problemsProblems writing to a CD-RW drive Mail, Modem, and Internet Problems DVD drive problemsHard drive problems Solving Problems Error Messages Operating System not Found Contact Dell seeGeneral Problems Computer stops respondingProgram stops responding Program crashes repeatedlyOther software problems Solid blue screen appearsOther technical problems General hardware problemsIeee 1394 Device Problems Keyboard ProblemsMouse Problems Network Problems PC Card ProblemsLink activity light Power Problems Printer Problems Scanner Problems Sound and Speaker Problems No sound from speakersVideo and Monitor Problems No sound from headphonesIf the screen is blank If the screen is difficult to read Solving Problems Diagnostic Lights Light Pattern Problem Description Suggested ResolutionAdvanced Troubleshooting Modules installed, remove Modules, reinstall one moduleNormally, reinstall an additional Identified a faulty module orRemove the card and reinstall it If the problem persists orIf the computer has a video card See page 66, and restartDell Diagnostics Starting the Dell Diagnostics Option FunctionWhat Is a Driver? DriversIdentifying Drivers Tab FunctionReinstalling Drivers Restoring Your Operating SystemUsing Microsoft Windows XP System Restore Restoring the Computer to an Earlier Operating StateUsing Dell PC Restore by Symantec Enabling System Restore Resolving Software and Hardware IncompatibilitiesFront and Back View of the Computer Front ViewAdding Parts Unexpectedly restart More informationInstead, perform an operating system shutdown Back View Network jack Modem jack Reattaching the Front Door Opening the Computer Cover Hinge arms Closed positionFront door Cable security tab Back of computer Adding PartsLooking Inside Your Computer System Board Adding PC Cards Optional PC Card TypesInstalling a PC Card Removing a PC Card Adding Other Cards Adding or Replacing a Video Card Notch Lever Tab card clip AGP connector PCI connector Removing a Video CardHinged lever Filler bracket Installing a Video Card Adding MemoryDDR Memory Overview Installing Memory Securing clips Connector Notch Memory module Cutouts CrossbarRemoving Memory Closing the Computer Cover Specifications MicroprocessorSystem Information Expansion BusPorts and Connectors MemoryDrives VideoPower AudioNetwork Controls and LightsEnvironmental Is 914 m 3000 ft914 m 3000 ft Standard Settings Clearing Forgotten Passwords Viewing SettingsSystem Setup Screens Replacing the Battery Battery Definition of Dell-Installed Software and Peripherals Dell Technical Support Policy U.S. OnlyDefinition of Third-Party Software and Peripherals FCC Notices U.S. Only Class a Class BContacting Dell FCC Identification InformationAppendix Appendix Appendix Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix Appendix Appendix Appendix 800 300 412 or 21 422 07 Appendix Appendix Toll-free Or toll-free Appendix Index Index 101Index 102 IndexIndex 103 Index 104