Dell E520 service manual Clearing Forgotten Passwords

Page 32

System Setup: Dell Dimension E520 Service Manual

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

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

4.Press the spacebar to enable or disable a device. Enabled devices have a number assigned to them; disabled devices have no number assigned.

5.Press <U> or <D> to move a selected device up or down the list.

Clearing Forgotten Passwords

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

1.Follow the procedures in Before Working Inside Your Computer.

2.Remove the computer cover (see Removing the Computer Cover).

3.Locate the 2-pin password jumper (CLRPSWD) on the system board (see System Board Components), and remove the jumper to clear the password.

NOTE: When you receive your computer, the jumper plug is attached to pins 1 and 2.

4.Replace the computer cover (see Replacing the Computer Cover).

5.Connect your computer and monitor to electrical outlets, and then turn them on.

6.After the Microsoft® Windows® desktop appears on your computer, shut down the computer (see Turning Off Your Computer).

7.Turn off the monitor and disconnect it from the electrical outlet.

8.Disconnect the computer power cable from the electrical outlet, then press the power button to ground the system board.

9.Remove the computer cover (see Removing the Computer Cover).

10.Locate the 2-pin password jumper (CLRPSWD) on the system board (see System Board Components) and attach the jumper to pins 1 and 2 to re-enable the password feature.

file:///T/htdocs/systems/dimE520/en/SM_EN/syssetup.htm[10/16/2012 1:04:54 PM]

Image 32
Contents Model Dcta July 2006 Rev. A00 Getting Started Recommended ToolsTurning Off Your Computer Before Working Inside Your ComputerBack to Contents About Your Computer Front View of the ComputerBack View of the Computer Back Panel Connectors Has been securely attached VGA connector Inside View of Your Computer System Board ComponentsPower Supply DC Connector Pin Assignments ClrpswdDC Power Connector P1 Pin Number Signal Name Color Wire GaugePin Number Signal Name AWG Wire DC Power Connector P2DC Power Connect P3, P5, P8, and P9 DC Power Connector P7 DC Power Connector P10Computer Information ProcessorMemory Video AudioExpansion Bus DrivesControls and Lights ConnectorsPower Physical EnvironmentalAdvanced Troubleshooting Power LightsDiagnostic Lights Problem Description Suggested ResolutionBeep Codes Code CauseSystem Messages MessagePossible Cause Corrective ActionDell Diagnostics Starting the Dell DiagnosticsTab Function Dell Diagnostics Main MenuOption Function What Is a Driver? Reinstalling DriversDrivers Identifying DriversResolving Software and Hardware Incompatibilities Click Roll Back DriverClick Start, then click Help and Support Overview Entering System SetupSystem Setup Screens System Setup Options SystemOnboard Devices Boot Sequence Option SettingsChanging Boot Sequence for the Current Boot Changing Boot Sequence for Future BootsClearing Forgotten Passwords Click Save this program to disk, and then click OK Clearing Cmos SettingsFlashing the Bios Back to Contents Removing and Installing Parts Removing the Computer CoverInside View of Your Computer System Board Components Usbback Memory DDR2 Memory OverviewAddressing Memory With 4-GB Configurations Installing MemoryRemoving Memory Cards PCI CardsRelease tab Bracket caught outside of slot Removing a PCI Card Installing a PCI Express Card PCI Express CardsPage Page Removing a PCI Express Card Drive Panel Removing the Drive PanelInstalling the Drive-Panel Insert Removing the Drive-Panel InsertInstalling the Drive Panel DrivesConnecting Drive Cables Drive Interface ConnectorsHard Drive Removing a Hard DriveInstalling a Hard Drive Drive Adding a Second Hard Drive Floppy Drive Removing a Floppy DriveInstalling a Floppy Drive Shoulder screws Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader Reader Media Card Reader Screws CD/DVD Drive Removing a CD/DVD DriveInstalling a CD/DVD Drive Screws Battery Replacing the BatteryPower Supply Removing the Power SupplyInstalling the Power Supply ProcessorRemoving the Processor Processor socket Installing the Processor Panel Panel Components Removing the I/O PanelRemoving the Processor Fan Installing the I/O PanelProcessor Fan Page Removing the System Board Installing the Processor FanSystem Board Installing the System Board Replacing the Computer Cover
Related manuals
Manual 148 pages 59.18 Kb Manual 2 pages 10.29 Kb