Recovering From A Post/Bios Update Failure - Lenovo ThinkCentre A35 8139 User Manual

Lenovo thinkcentre a35 8139: user guide
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3. Print these instructions. This is very important since they are not on the screen
4. From your browser, Click Back to return to the list of files. Carefully follow the

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):
10. Replace the cover and reconnect all power cords and cables that were
11. Turn on the computer to restart the operating system.
32
User Guide
after the download begins.
printed instructions to download, extract, and install the 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 remove the cover. See
"Removing the cover" on page 11.
3. Locate the Clear CMOS/Recovery jumper on the system board. See
"Identifying parts on the system board" on page 12.
4. Move the jumper from the standard position (pins 1 and 2) to pins 2 and 3.
Note: If only two pins exist on the system board, place the jumper across the
two pins.
5. Replace the cover and reconnect all power cords. See "Replacing the cover
and connecting the cables" on page 25.
6. Insert the POST/BIOS update (flash) diskette into diskette drive A, and turn
on the computer.
7. 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,
the series of beeps will end, and the system will automatically turn off.
Remove the diskette from the diskette drive.
8. Repeat steps 2 through 3 on page 32.
9. Move the Clear CMOS/Recovery jumper to its original position.
disconnected.

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