Dell H7228 If the computer has a video card, Remove the card and reinstall it, Contact Dell see

Page 45

Light Pattern	Problem Description	Suggested Resolution

	A possible video card failure	• If the computer has a video card,
	has occurred.	remove the card and reinstall it
A B C D		(see page 66), and restart
A B C D		the computer.
		• If the problem still exists, install a
		video card that you know works and
		restart the computer.
		• If the problem persists or the
		computer has integrated video,
		contact Dell (see page 83).
	A possible floppy or hard drive failure	Reseat all power and data cables and
	has occurred.	restart the computer.

A B C D

A possible USB failure has occurred.

A B C D

No memory modules are detected.

A B C D

Reinstall all USB devices, check cable connections, and then restart

the computer.

•Reinstall all memory modules (see page 68) and restart the computer.

•To eliminate the possibility of a faulty memory connector, remove all memory modules (see page 68), reinstall one memory module (if the computer supports a single module), and then restart the computer. If the computer starts normally, move the memory module to a different connector and restart the computer. Continue until you have identified a faulty connector or reinstalled all modules without error.

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Advanced Troubleshooting

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Contents USB 2.0 connectors Ieee 1394 connector Dell Dimension 4600CAbbreviations and Acronyms Contents Program is designed for an earlier Microsoft Windows Mail, Modem, and Internet ProblemsResolving Software and Hardware Incompatibilities Using Microsoft Windows XP System RestoreAppendix 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 How to clean my computer Tips on using WindowsFinding Information for Your Computer Microsoft Windows License LabelDownloads Drivers, patches, and software updates Answers to technical serviceHow to use Windows XP Support questionsSetting Up and Using Your Computer Connecting the AC Adapter Japan onlyTabs Tab holes Setting Up and Using Your Computer Attaching and Removing the Computer StandScrew Setting Up a Printer Parallel connector on computer Connecting a Parallel PrinterPrinter Cable Screws Clips Parallel printer Cable NotchesUSB connector on computer Connecting a USB PrinterSetting Up a Home and Office Network Connecting an Ieee 1394 Device OptionalConnecting to a Network Adapter Ieee 1394 connector Ieee 1394 cableNetwork cable Network Setup WizardSetting Up Your Internet Connection Connecting to the InternetCopying CDs and DVDs How to Copy a CD or DVDUsing Blank CD-Rs and CD-RWs Hyper-ThreadingHelpful Tips Turning Off Your Computer Booting to a USB DeviceSetting Up and Using Your Computer Solving Problems Finding SolutionsW . d e l l . c o m s u p p o r t . d e l l . c o m See Finding Help Information Battery ProblemsDrive Problems CD drive problemsProblems writing to a CD-RW drive Mail, Modem, and Internet Problems DVD drive problemsHard drive problems Solving Problems Operating System not Found Contact Dell see Error MessagesComputer stops responding General ProblemsProgram stops responding Program crashes repeatedlySolid blue screen appears Other software problemsGeneral hardware problems Other technical problemsKeyboard Problems Ieee 1394 Device ProblemsMouse Problems Network Problems PC Card ProblemsLink activity light Power Problems Printer Problems Scanner Problems No sound from speakers Sound and Speaker ProblemsVideo 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, reinstall one module Modules installed, removeNormally, reinstall an additional Identified a faulty module orIf the problem persists or Remove the card and reinstall itIf the computer has a video card See page 66, and restartDell Diagnostics Option Function Starting the Dell DiagnosticsDrivers What Is a Driver?Identifying Drivers Tab FunctionRestoring Your Operating System Reinstalling DriversRestoring the Computer to an Earlier Operating State Using Microsoft Windows XP System RestoreUsing Dell PC Restore by Symantec Resolving Software and Hardware Incompatibilities Enabling System RestoreFront 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 Back of computer Adding Parts Cable security tabLooking Inside Your Computer System Board PC Card Types Adding PC Cards OptionalInstalling 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 Notch Memory module Cutouts Crossbar Securing clips ConnectorRemoving Memory Closing the Computer Cover Microprocessor SpecificationsSystem Information Expansion BusMemory Ports and ConnectorsDrives VideoAudio PowerNetwork 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 Class a Class B FCC Notices U.S. OnlyFCC Identification Information Contacting DellAppendix 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 101 Index102 Index IndexIndex 103 Index 104