Updating (Flashing) Bios From A Diskette Or Cd-Rom; Updating (Flashing) Bios From Your Operating System; Recovering From A Post/Bios Update Failure - Lenovo ThinkCentre 6487 Hardware Maintenance Manual

Updating (flashing) BIOS from a diskette or CD-ROM

1. If you are updating from a CD-ROM, insert the flash update CD-ROM in the
2. Shut down the operating system and turn off the computer.
3. If you are updating from a diskette, insert the flash update diskette in the
4. When you are prompted to select a language, press the number on your
5. When prompted to change the serial number, press Y, type the seven character
6. When prompted to change the machine type/model, press Y, type the seven
7. Follow the instructions on the screen to complete the update.

Updating (flashing) BIOS from your operating system

Note: Due to constant improvements being made to the Lenovo Web site, Web
1. From your browser, type http://www.lenovo.com/think/support.
2. In the Use Quick path field, type your 4-digit machine type and click Go.
3. Under Browse by product, click Downloads and drivers.
4.
5. On the Flash BIOS Update page, scroll down to locate the .txt file for the flash
6. Print these instructions. This is very important because these instructions are
7. From the browser, click Back to return to the list of files. Carefully follow the

Recovering from a POST/BIOS update failure

Attention: If an interruption occurs during a POST/BIOS update (flash update),
the computer might not restart correctly. If this occurs, perform the following
procedure (also known as a Boot-block recovery)
Note: If your computer has no internal diskette drive, an optional USB diskette
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Hardware Maintenance Manual
optical drive before turning off the computer.
diskette drive. Turn on the computer. The update begins.
keyboard that corresponds to the language; then press Enter.
serial number of your computer, and then press Enter.
character machine type/model of your computer, and then press Enter.
page content (including the links referenced in the following procedure) is
subject to change.
Scroll down to the BIOS category and click on the Flash Bios Update.
from the operating system version. Click the .txt file.
not on the screen after the download begins.
printed instructions to download, extract, and install the update.
drive must be connected to use the BIOS flash diskette.
1. Open the cover.
2. Remove any parts necessary to gain access to the Clear CMOS/Recovery
jumper.
3. Move the Clear CMOS/Recovery jumper from the standard position (pins 1
and 2) to pins 2 and 3.
4. Insert the BIOS flash diskette in the diskette drive.
5. Close the cover and reconnect the computer power cord to the computer and
to an electrical outlet. Turn on the computer.
6. The recovery session takes two to three minutes. During this time you will
hear a series of beeps. After the update session completes, the series of beeps
ends and the computer automatically turns off. There is no video during the
recovery session.
7. When the computer turns off, open the cover.