IBM 8087, 8088, 8086, 8090, 8089 manual Recovering from a POST/BIOS update failure

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5.Under Download files - BIOS by date, click your machine type.

6.Scroll down and look for a .txt file that has instructions for Flash BIOS update from the operating system. Click the .txt file.

7.Print these instructions. This is very important since they are not on the screen after the download begins.

8.From your browser, Click Back to return to the list of files. Carefully follow the printed instructions to download, extract, and install the update.

Recovering from a POST/BIOS update failure

If power to your computer is interrupted while POST/BIOS is being updated (flash update), your computer might not restart correctly. If this happens, perform the following procedure (also known as a Boot-block Recovery):

Note: An optional USB diskette drive is required to recover from a POST/BIOS flash update.

1.Turn off the computer and any attached devices, such as printers, monitors, and external drives.

2.Unplug all power cords from electrical outlets, and open the cover. See “Opening the cover” on page 10.

3.Pivot the drive bay assembly upward to gain access to the system board.

4.Locate the fan bracket assembly. See “Locating components” on page 11.

5.Lift the fan bracket assembly up to gain access to the Clear CMOS/Recovery jumper.

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

7.Move the jumper from the standard position (pins 1 and 2) to pins 2 and 3.

8.Close the cover and reconnect all power cords. See “Closing the cover and connecting the cables” on page 23.

9.Insert the POST/BIOS update (flash) diskette into USB diskette drive A, and turn on the computer.

10.The update session will take 2-3 minutes. During this time you will hear a series of beeps. After the update session is completed, there will be no video,

30User Guide

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Contents User Guide Types 8086, 8087 Types 8089 Page User Guide Types 8086, 8087 Types 8089 Page Contents Iv User Guide Important safety information Conditions that require immediate actionPower cords and power adapters General safety guidelinesService Batteries Extension cords and related devicesPlugs and outlets CD and DVD drive safety Heat and product ventilationAdditional safety information Lithium battery noticeModem safety information To connect To disconnectPower supply statement Laser compliance statementOverview Information resourcesXii User Guide Installing options FeaturesVideo subsystem Operating systems preinstalled varies by model type Specifications Supported operating positions Available optionsHandling static-sensitive devices Installing external options Locating the connectors on the front of your computerLocating the connectors on the rear of your computer Connector Description Obtaining device driversOpening the cover Locating components Identifying parts on the system boardInstalling memory Installing options Installing a PCI adapter What to do nextWhat to do next Installing internal drives Removing and replacing an optical driveRemoving and replacing a hard disk drive User Guide Connecting a parallel ATA hard disk drive Security features Integrated cable lock Password protectionChanging the battery Erasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Using the IBM Setup Utility program Starting the IBM Setup Utility programViewing and changing settings Exiting from the IBM Setup Utility programUser password Administrator passwordSetting, changing, and deleting a password Using Security Profile by DeviceUsing IDE Drives Setup Selecting a startup deviceSelecting a temporary startup device Changing the startup sequenceUser Guide Updating flashing Bios from a diskette Updating flashing Bios from your operating systemAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Appendix A. Updating system programs User Guide Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Appendix C. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix C. Manual modem commands User Guide Tier 2 CRUs Appendix D. Customer replaceable unit CRU parts listTier 1 CRUs User Guide Appendix E. Notices Television output notice TrademarksIndex Security integrated cable lock Page Part Number 19R2375