Dell 660S manual Clearing Forgotten Passwords

Page 87

Clearing Forgotten Passwords

WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.

WARNING: The computer must be disconnected from the electrical outlet to clear the CMOS setting.

1Follow the instructions in "Before You Begin" on page 9.

2Remove the computer cover. See "Removing the Computer Cover" on page 17.

3Remove fan shroud. See "Removing the Fan Shroud" on page 19.

4Locate the3-pin password reset jumper (PSWDCLR1) on the system board. See "System Board Components" on page 15.

5Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2

6Turn on the computer to clear the password.

7Turn off the computer and disconnect your computer and all attached devices from their electrical outlets.

8Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 and 3 to enable the password feature.

9Replace the fan shroud. See "Replacing the Fan Shroud" on page 20.

10Replace the computer cover. See "Replacing the Computer Cover" on page 18.

11Connect your computer and devices to electrical outlets and turn them on.

System Setup

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Contents Page 2012 Rev. A00 Contents Replacing Memory Modules Removing the Front I/O Panel Replacing the Front I/O Panel Processor Fan and Heat-Sink Assembly Clearing Forgotten Passwords Contents Safety Instructions Before You BeginTurn Off Your Computer and Connected Devices Recommended Tools Procedures in this document may require the following toolsAfter Working Inside Your Computer After Working Inside Your Computer Technical Overview Inside View of Your Computer SLOT1 System Board ComponentsTechnical Overview Removing the Computer Cover Computer CoverReplacing the Computer Cover Removing the Fan Shroud Fan ShroudReplacing the Fan Shroud ProcedureRemoving Memory Modules Memory ModulesMemory-module connector Replacing Memory Modules Memory module Memory Modules Postrequisites Memory Modules Removing the PCI-Express Cards PCI-Express CardsSecuring tab Replacing the PCI-Express Cards Installed Removing the Mini-Card Mini-CardDisconnect the antenna cables from the Mini-Card Replacing the Mini-Card Mini-Card Removing the Front Bezel Front BezelSet aside the front bezel in a secure location Replacing the Front Bezel Front Bezel Removing the Drive Cage Drive CageOptical-drive data cable Screws Hard-drive data cable Replacing the Drive Cage Drive Cage Removing the Optical Drive Optical DriveSet aside the optical drive in a secure location Replacing the Optical Drive Optical Drive Removing the Hard Drive Hard DriveSet aside the hard drive in a secure location Replacing the Hard Drive Hard Drive Removing the Front I/O Panel Front I/O PanelPage Replacing the Front I/O Panel Front I/O Panel Removing the Power-Button Module Power-Button ModuleRouting guide Replacing the Power-Button Module Power Button Module Removing the Power-Supply Unit Power-Supply UnitPower-supply unit Replacing the Power-Supply Unit Power-Supply Unit Removing the Processor Fan Heat-Sink Assembly Processor Fan Heat-Sink AssemblyProcessor fan cable Replacing the Processor Fan Heat-Sink Assembly Processor Fan and Heat-Sink Assembly Removing the Processor ProcessorReplacing the Processor Alignment post Processor Removing the Coin-Cell Battery Coin-Cell BatteryReplacing the Coin-Cell Battery Removing the System Board System BoardScrews System board System Board Replacing the System Board Entering the Service Tag in the Bios System Setup Entering System SetupOverview System Setup Screens System Setup Options Device Type IntelR Virtualization Onboard Audio Controller LAN/WLAN Supervisor Password Boot Sequence Changing Boot Sequence for the Current Boot Clearing Forgotten Passwords Clearing Cmos Passwords System Setup System Setup Service Tag or Express Service Code field Flashing the BiosFlashing the Bios Specifications Specifications