IBM 6824, 2289 manual Erasing a lost or forgotten password clearing Cmos

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3.Position the cover on the chassis so that the guides on the top and bottom of the cover engage the chassis and push the cover to the closed position. Insert the screws that secure the cover.

4.Reconnect the external cables and power cords to the computer. See “Installing external options” on page 6.

5.To update the configuration, see Chapter 2, “Using the IBM Setup Utility program” on page 25.

Important:

When the power cord is first plugged in, the computer might appear to turn on for a few seconds and then turn off. This is a normal sequence to enable the computer to initialize.

Erasing a lost or forgotten password (clearing CMOS)

This section applies to lost or forgotten passwords. For more information about lost or forgotten passwords, go to Access IBM.

To erase a forgotten password:

1.Turn off the computer and all attached devices.

2.Unplug the power cord.

3.Remove the cover. See “Removing the cover” on page 10.

4.Locate the Clear CMOS/Recovery jumper on the system board. See “Identifying parts on the system board” on page 11.

5.If necessary, see “Installing adapters” on page 14 to remove any adapters that impede access to the Clear CMOS/Recovery jumper.

22User Guide

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Contents User Guide Type 2289 Page User Guide Type 2289 Page Appendix B. Manual modem Iv User Guide Safety Information To connect To disconnectModem safety information Lithium battery noticeConnexion Déconnexion Laser compliance statement Consignes de sécurité relatives au modemViii User Guide Overview Information resourcesUser Guide Installing options FeaturesAudio subsystem Security features Specifications Tools required Available optionsHandling static-sensitive devices Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device driversRemoving the cover Locating components Identifying parts on the system boardInstalling memory What to do next Installing adapters Installing internal drives Drive specifications Installing a drive Connecting the first IDE CD-ROM drive or DVD-ROM drive Connecting an additional IDE CD-ROM drive or DVD-ROM drive Physical securityChanging the battery Replacing the cover and connecting the cables Erasing a lost or forgotten password clearing Cmos Installing options User Guide Viewing and changing settings Using the IBM Setup Utility programStarting the IBM Setup Utility program Exiting from the IBM Setup Utility programSetting, changing, and deleting a password User passwordAdministrator password Using Security Profile by DeviceSelecting a temporary startup device Selecting a startup deviceChanging the startup device sequence User Guide Appendix A. Updating System Programs Updating flashing Bios from a disketteUpdating flashing Bios from your operating system System programsRecovering from a POST/BIOS update failure Appendix B. Manual modem commands Basic AT commandsExtended AT commands US setting for off-hook-to-on-hook ratio Guard tone disabledEnable RTS/CTS hardware flow control Force DSR Signal High onFax Class 1 commands MNP/V.42/V.42bis/V.44 commandsFax Class 2 commands Voice commands User Guide Address map Appendix C. System address mapsSystem memory map Address range Address range hex Size Description DecimalLPT3 DMA I/O address map Address hex Description Bits Byte pointerAddress hex Description Bits Byte pointer System resource DMA channel Data width System resourceUser Guide Appendix E. Notices Television output noticeTrademarks IBMIndex DVDPage Page Part Number 49P1040