Compaq 177620-006, Compaq Evo Desktop manual Cmos button

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Password Security and Resetting CMOS

ÄCAUTION: Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. See the Safety & Regulatory Information Guide for more information.

3.Remove the computer cover or access panel.

ÄCAUTION: Pushing the CMOS button will reset CMOS values to factory defaults and will erase any customized information including passwords, asset numbers, and special settings. It is important to back up the computer CMOS settings before resetting them in case they are needed later. Back up is easily done through Computer Setup. See the Computer Setup (F10) Utility Guide for information on backing up your CMOS settings.

4.Locate, press, and hold the CMOS button in for 5 seconds.

CMOS button

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Troubleshooting Guide

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Contents Troubleshooting Guide Troubleshooting Guide Sixth Edition May Document Part Number Contents Installing Scsi Drivers for Windows NT Installation Index Compaq Diagnostics for Windows Computer Diagnostic FeaturesMenu Bar-File, Categories, Navigation, Level, Tab, Help Tabs-Overview, Test, Status, Log, Error Installing Compaq Diagnostics for WindowsUsing Categories in Compaq Diagnostics for Windows Running Diagnostic Tests in Compaq Diagnostics for Windows Computer Diagnostic Features Running Configuration Record Utility Compaq Configuration Record UtilityWindow File Compaq Remote Diagnostics Enabling AgentStarting the Remote Diagnostics Enabling Agent Restoring Your Software Protecting Your SoftwareTroubleshooting Without Diagnostics Helpful Hints Problem Cause Solution Solving General ProblemsSolving General Problems See the Hardware Reference Guide Control Panel Computer SetupNum Lock key Solving Power Supply Problems Solving Power Supply ProblemsSolving Power Supply Problems Solving Diskette Problems Solving Diskette ProblemsUse Computer Setup to check ScanDisk Accessories System ToolsUnder Error-checking, click Click Start ProgramsStorage Storage Options OrderPower-On Solving Hard Drive ProblemsSolving Hard Drive Problems Options Power-On OptionsControllers in Storage Storage Storage Boot Order list Solving Display Problems Solving Display ProblemsSolving Display Problems Solving Display Problems Audio Devices, then click Solving Audio ProblemsSolving Audio Problems From the Control PanelSolving Audio Problems Troubleshooting Without Diagnostics Solving Printer Problems Solving Printer ProblemsComputer. The Turn Off Solving Keyboard and Mouse ProblemsSolving Keyboard Problems Click Shut Down or Turn OffTo select Shut Down or Turn Solving Mouse ProblemsSolving Hardware Installation Problems Solving Hardware Installation ProblemsSolving Hardware Installation Problems Solving Network Problems Solving Network ProblemsUnder the Computer Setup Use the Computer Setup to disable the embedded NIC Using the Compaq Restore CDSolving Processor Problems Solving Processor ProblemsSolving Memory Problems Solving Memory ProblemsSolving Memory Problems Storage Controller Order, Solving Scsi ProblemsSolving Scsi Problems Storage Boot Order, and enableSolving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsSolving CD-ROM and DVD Problems Solving Software Problems Solving Software ProblemsContacting Compaq Customer Support Code/Message Beeps Probable Cause Recommended Action Post Numeric Codes and Text MessagesNumeric Codes and Text Messages Reference Guide for Control Panel. If the problemHardware Reference Guide for Control Panel ComputerNumeric Codes and Text Messages Hardware Reference Guide Numeric Codes and Text Messages Numeric Codes and Text Messages Numeric Codes and Text Messages Numeric Codes and Text Messages Numeric Codes and Text Messages Numeric Codes and Text Messages ROM Bios Run Computer Setup Activity Beeps Probable Cause Recommended Action Diagnostic Keyboard LEDS, Front Panel LEDs and Audible CodesNum Lock LED On Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes Second on select Password Security and Resetting Cmos Resetting the Password Jumper Using the Cmos Button Clearing and Resetting the CmosCmos button Using Computer Setup to Reset Cmos Introducing the Drive Protection System Drive Protection System DPSPanel Compaq Diagnostics Accessing DPS Through Compaq Diagnostics for WindowsSelect Storage IDE DPS Self-Test Accessing DPS Through Computer SetupMicrosoft Windows 98 and Microsoft Windows Setting up Analog/Digital Audio OutputMicrosoft Windows XP Microsoft Windows NTClick Properties Click Settings Installing Scsi Drivers for Windows NT Installation Installing Scsi Drivers for Windows NT Installation Index Index-2 Protecting