Clearing Forgotten Passwords | Dell G7279, MTC2, DMC manual

The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it.

3At the bottom of the menu, enter the number of the device that is to be used for the current boot only.

Changing Boot Sequence for Future Boots

1Enter system setup (see page 82).

2Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> to access the pop-up menu.

NOTE: Write down your current boot sequence in case you want to restore it.

3Press the up- and down-arrow keys to move through the list of devices.

4Press the spacebar to enable or disable a device (enabled devices have a checkmark).

5Press plus (+) or minus (–) to move a selected device up or down the list.

Clearing Forgotten Passwords

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

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

1Shut down the computer through the Start menu (see page 18).

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 cover (see page 55).

5Locate the 3-pin password jumper (see page 58) on the system board, and then attach the jumper to both pins.

When you receive your computer, the jumper is attached to only one pin.

6Replace the computer cover (see page 78).

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

7Connect your computer and devices to electrical outlets, and then turn them on.

8If you are prompted to press <F1> to continue, press <F1>.

Appendix

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Dell G7279, MTC2, DMC manual Clearing Forgotten Passwords, Changing Boot Sequence for Future Boots

Contents

W . d e l l . c o m s u p p o r t . d e l l . c o m Abbreviations and Acronyms Contents Program is designed for an earlier Microsoft Windows Mail, Modem, and Internet Problems Using Microsoft Windows XP System Restore Advanced TroubleshootingResolving Software and Hardware Incompatibilities Adding or Replacing a Second Hard Drive Appendix Safety Instructions Safety Instructions W . d e l l . c o m s u p p o r t . d e l l . c o m Microsoft Windows License Label Finding Information for Your Computer Support questions Downloads Drivers, patches, and software updatesOnline courses Technical support Connecting a Parallel Printer Setting Up a PrinterSetting Up and Using Your Computer Printer Cable Parallel connector on computer Connecting a USB PrinterScrews Clips Parallel printer Cable Notches Connecting to a Network Adapter Setting Up a Home and Office NetworkUSB connector on computer Network Setup Wizard Connecting to the InternetClick Checklist for creating a network Network wall jack Network cable Click Connect to the Internet Setting Up Your Internet ConnectionIf you have a CD, click Use the CD I got from an ISP Using Blank CD-Rs and CD-RWs How to Copy a CD or DVDCopying CDs and DVDs Click Exact Copy Helpful Tips Hyper-ThreadingClick Hardware and click Device Manager Turning Off Your Computer Booting to a USB DeviceTurn Off Computer Turn off computer window, click Turn off Solving Problems Finding Solutions W . d e l l . c o m s u p p o r t . d e l l . c o m See Drive Problems Battery ProblemsFloppy drive problems Finding Help Information Back of floppy disk Write-protected Not write- protected CD drive problems DVD drive problems Problems writing to a CD-RW drive Hard drive problems Mail, Modem, and Internet Problems Error Messages Computer stops responding General Problems Program stops responding Other software problemsProgram crashes repeatedly Solid blue screen appears General hardware problems Other technical problems Ieee 1394 Device Problems Mouse Problems Keyboard Problems Network Problems Network integrity Power ProblemsSpeed light Printer Problems Scanner Problems No sound from speakers Sound and Speaker Problems No sound from headphones Video and Monitor ProblemsIf the screen is blank If the screen is difficult to read Solving Problems Light Pattern Problem Description Suggested Resolution Diagnostic LightsAdvanced Troubleshooting Error Identified a faulty module orIf available, install properly If the problem persists, contact Different connector and restart If the problem persists orYou have identified a faulty Connector or reinstalled all That you are installing are Connector placementMemory module/memory Requirements see Starting the Dell Diagnostics Dell Diagnostics Option Function Dell Diagnostics Main MenuTab Function Reinstalling Drivers What Is a Driver?Drivers Identifying Drivers Manually Reinstalling Drivers Using Windows XP Device Driver RollbackRestoring Your Operating System Click Roll Back Driver Creating a Restore Point Using Microsoft Windows XP System RestoreClick System Restore Restoring the Computer to an Earlier Operating State Using Dell PC Restore by Symantec Click Performance and Maintenance Enabling System RestoreClick the System Restore tab Click Performance and Maintenance and click System Advanced Troubleshooting Front View Front and Back View of the ComputerOn computers with an optional floppy drive Adding Parts Computer. Instead, perform an operating system shutdown Back View Network jack Guide Removing the Computer Cover Computer cover Cover latch Back of computer Looking Inside Your Computer System Board Securing screw Filler bracket Adding Cards Crossbar Card Card cutoutNot fully seated card Fully seated card Bracket Adding or Replacing the AGP Card Notch Lever Tab Card clip AGP connector Installing an AGP CardPCI connector AGP card Card clip lever Slot connector Adding or Replacing a Second Hard Drive Screws Existing hard driveDrive bracket Drive bracket Adding a Floppy Drive Middle tab Side hinges Front panel Top tabBottom tab Tabs Insert Top bracket screw Drive bracket Floppy drive Side hinges Front panel Adding a Second CD or DVD Drive Bottom tab Adding Parts Drive Alignment screws Insert Tabs Drive Securing screw Side hinges Front panel Adding Memory Memory Installation GuidelinesDDR Memory Overview Installing Memory Notch Securing clips Connector Replacing the Computer Cover System Information SpecificationsExpansion Bus Appendix Memory Ports and ConnectorsOther factors Drives Video PowerAudio Network Overview System SetupEnvironmental System Setup Screens Viewing SettingsKeys Action Option Settings Boot SequenceChanging Boot Sequence for the Current Boot Changing Boot Sequence for Future Boots Clearing Forgotten Passwords Replacing the Battery Battery Battery socket Dell Technical Support Policy U.S. Only Definition of Dell-Installed Software and PeripheralsFCC Notices U.S. Only Definition of Third-Party Software and Peripherals Class a Class B FCC Identification Information Contacting Dell Appendix Appendix Appendix Appendix Appendix Appendix Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix 100 101 102 103 104 105 106 Index 107 Index Compatibility, 27 restore to previous operating Index Help files accessing, 9108 Index Wizards Program Compatibility Wizard Wizard, 27 reinstalling, 47 scanner, 34 System RestoreIndex 109 Index 110