Table of Contents
Advertisement
5. When prompted to change the machine type and model, it is suggested that
6. Follow the instructions on the screen to complete the update. After the update
Updating (flashing) the BIOS from your operating system
Note: Because Lenovo makes constant improvements to its Web sites, the Web
To update (flash) the BIOS from your operating system, do the following:
1. Go to http://www.lenovo.com/support.
2. Do the following to locate the downloadable files for your machine type:
3. Click the TXT file that contains the instructions for updating (flashing) the BIOS
4. Print these instructions. This is very important because these instructions will
5. Follow the printed instructions to download, extract, and install the update.
Recovering from a POST/BIOS update failure
If the power to your computer is interrupted while the POST/BIOS is being
updated (flash update), your computer might not restart correctly. If this happens,
perform the following procedure commonly called Boot-block Recovery.
48
User Guide
you do not make this change by pressing N. However, if you do want to
change the machine type and model, press Y, then type in the machine type
and model and press Enter.
is completed, remove the disc from the optical drive.
page contents are subject to change without notice, including the contents
referenced in the following procedure.
a. In the Enter a product number field, type your machine type and click Go.
b. Click Downloads and drivers.
c. Select BIOS from the Refine results drop-down list box to easily locate all
the BIOS related links.
d. Click the BIOS update link.
from your operating system.
not be displayed on the screen after the download begins.
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. Open the computer cover. See "Opening the computer cover" on page 14.
3. Locate the Clear CMOS /Recovery jumper on the system board. See "Locating
parts on the system board" on page 11.
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.
7. Close the computer cover and reconnect the power cords for the computer
and monitor to electrical outlets. See "Completing the parts replacement" on
page 31.
8. Turn on the computer and then insert the POST and BIOS update (flash
update) disc into the optical drive. The recovery session begins. The recovery
session will take two to three minutes. During this time, you will hear a series
of beeps.
Advertisement
Table of Contents
