You need an AC adapter and a charged battery pack to update the BIOS.
If your computer is attached to any kind of docking station or port replicator, turn off the computer and detach it before proceeding.
Make sure the BIOS diskette is write protected.
The embedded controller version can be checked two different ways. It can be viewed by invoking IBM BIOS Setup Utility or by running the ThinkPad Configuration from operating system, and selecting System Information from the Help menu or the System Information button.
Print these instructions or display on another computer.
Firmly connect the AC adapter to the computer.
Insert the System Program Service Diskette into the diskette drive and turn on the computer.
Select Read this first from the menu and carefully read the information that appears.
Press the Esc key to return to the menu.
Select Update system program and follow the instruction on the screen.
Attention: Do not turn off or suspend the computer until the update has been completed. If you turn off or suspend the computer while the update is still in progress, the system board may have to be replaced.
After the update has been completed, do the following to make the changes effective.
Make sure there is no diskette in the diskette drive and then turn on the computer.
While the Press F1 for IBM BIOS Setup Utility message is displayed at the lower-left area of the screen, press the F1 key. The IBM BIOS Setup Utility menu will be displayed. If a password prompt appears, type the correct password.
Press the F9 key to load default configuration.
Select Yes.
Press the F10 key to save default configuration.
Select Yes. The system will restart automatically.
III. BIOS information with links to previous BIOS releases
Each version of the BIOS update diskette contains the following system program information.
The BIOS information can be viewed by invoking IBM BIOS Setup Utility.
Make sure there is no diskette in the diskette drive, then turn off the computer.
Turn on the computer.
While the Press F1 for IBM BIOS Setup Utility message is displayed at the lower-left area of the screen, press the F1 key. The IBM BIOS Setup Utility menu will be displayed. If a password prompt appears, type the correct password. The BIOS version and date are displayed on the first screen of the IBM BIOS Setup Utility.
IV. Memory information
The following information shows memory areas that are either unavailable or that can be included with a memory manager such as EMM386.
Reserved BIOS area*
C0000-CBFFF (reserved for Video BIOS)
E0000-FFFFF (reserved for BIOS)
