Dell H7228 manual Clearing Forgotten Passwords, Viewing Settings, System Setup Screens

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w w w . d e l l . c o m s u p p o r t . d e l l . c o m

Viewing Settings

1Turn on (or restart) your computer.

2When the blue DELL™ logo appears, press <F2> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again.

System Setup Screens

The system setup program screens display the current configuration information for your computer. Information on the screen is divided into five areas:

Title — The box at the top of all screens that lists the computer name.

Computer data — Two boxes below the title box that display your computer processor, L2 cache, service tag, and the version number of the BIOS.

Options — A scrollable box listing options that define the configuration of your computer, including installed hardware, power conservation, and security features.

Fields to the right of the option titles contain settings or values. The fields that you can change appear bright on the screen. The fields that you cannot change (because they are set by the computer) appear less bright. When <Enter> appears to the right of an option title, press <Enter> to access a popup menu of additional options.

Key functions — A line of boxes across the bottom of all screens that lists keys and their functions within system setup.

Help — Press <F1> for information on the option that is selected (highlighted).

Clearing Forgotten Passwords

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

If you forget your user or setup password, you cannot operate your computer or change settings in the system setup program until you clear the forgotten password(s).

NOTICE: This process erases both the system and setup passwords.

1Shut down the computer (see page 21).

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.

2Turn off any attached devices and disconnect them from their electrical outlets.

3Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.

4Remove the computer stand (see page 13).

5Open the computer cover (see page 58).

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Appendix

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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 Finding Information for Your Computer Tips on using WindowsHow to clean my computer Microsoft Windows License LabelHow to use Windows XP Answers to technical serviceDownloads Drivers, patches, and software updates 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 Printer Cable Connecting a Parallel PrinterParallel connector on computer Screws Clips Parallel printer Cable NotchesConnecting a USB Printer USB connector on computerConnecting to a Network Adapter Connecting an Ieee 1394 Device OptionalSetting Up a Home and Office Network 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 seeProgram stops responding General ProblemsComputer 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 Normally, reinstall an additional Modules installed, removeModules, reinstall one module Identified a faulty module orIf the computer has a video card Remove the card and reinstall itIf the problem persists or See page 66, and restartDell Diagnostics Starting the Dell Diagnostics Option FunctionIdentifying Drivers What Is a Driver?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 System Information SpecificationsMicroprocessor Expansion BusDrives Ports and ConnectorsMemory VideoNetwork PowerAudio 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