Updating The Bios; Recovering From A Bios Update Failure - Lenovo THINKCENTRE M79 User Manual
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Also See for THINKCENTRE M79:
- Hardware maintenance manual (186 pages) ,
- User manual (154 pages) ,
- Safety, warranty, and setup manual (2 pages)
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Updating the BIOS
When you install a new program, hardware device, or device driver, you might be informed to update
the BIOS. You can update the BIOS from your operating system or a flash update disc (supported only
on some models).
To update the BIOS, do the following:
1. Go to http://www.lenovo.com/drivers.
2. Download the flash BIOS update driver for the operating system version or the ISO image version (used
to create a flash update disc). Then, download the installation instructions for the flash BIOS update
driver you download.
3. Print the installation instructions you download and follow the instructions to update the BIOS.
Note: If you want to update the BIOS from a flash update disc, the installation instructions might not provide
the information about how to record the update disc. See "Recording a disc" on page 19.
Recovering from a BIOS update failure
To recover from a BIOS update failure, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 69.
3. Locate the Clear CMOS /Recovery jumper on the system board. See "Locating parts on the system
board" on page 6.
4. Remove any cables that impede access to the Clear CMOS /Recovery jumper.
5. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and
pin 3).
6. Reconnect any cables that were disconnected and reinstall the PCI card if removed.
7. Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical
outlets. See "Completing the parts replacement" on page 106.
8. Press the power button to turn on the computer and insert the BIOS update disc into the optical drive.
Wait a few minutes. The recovery process begins. After the recovery process is completed, your
computer will be turned off automatically.
Note: Depending on the computer model, the recovery process will take two to three minutes.
9. Repeat step 1 through step 4.
10. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
11. Reconnect any cables that were disconnected and reinstall the PCI card if removed.
12. Reinstall the computer cover and reconnect any cables that were disconnected.
13. Press the power button to turn on the computer and restart the operating system.
.
Chapter 5
Advanced configuration
41
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Troubleshooting
