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Chapter 5. Updating system programs

This chapter provides information about updating the POST and BIOS, and how to

recover from a POST and BIOS update failure.

This chapter contains the following topics:

v “Using system programs”

v “Updating (flashing) the BIOS from a disc”

v “Updating (flashing) the BIOS from your operating system” on page 26

Using system programs

System programs are the basic layer of software built into your computer. System

programs include the POST, the BIOS, and the Setup Utility program. The POST is

a set of tests and procedures that are performed each time you turn on your

computer. The BIOS is a layer of software that translates instructions from other

layers of software into electrical signals that the computer hardware can execute.

You can use the Setup Utility program to view or change the configuration and

setup of your computer.

Your computer system board has a module called electrically erasable

programmable read-only memory (EEPROM, also referred to as flash memory).

You can easily update the POST, the BIOS, and the Setup Utility program by

starting your computer with a system-program-update disc or running a special

update program from your operating system.

Lenovo might make changes and enhancements to the POST and BIOS. When

updates are released, they are available as downloadable files on the Lenovo Web

site at http://www.lenovo.com. Instructions for using the POST and BIOS updates

are available in a TXT file that is included with the update files. For most models,

you can download either an update program to create a system-program-update

disc or an update program that can be run from the operating system.

Updating (flashing) the BIOS from a disc

This section provides instructions on how to update (flash) the BIOS from a disc.

Note: You can download a self-starting bootable disc image (known as an ISO

image) with the system program updates to create a system-program-update

disc. Go to:

http://www.lenovo.com/support

To update (flash) the BIOS from a disc, do the following:

1. Turn off your computer.

2. Repeatedly press and release the F12 key when turning on the computer. When

the Startup Device Menu opens, release the F12 key.

3. On the Startup Device Menu, select the desired optical drive as the first boot

device. Then, insert the disc into the optical drive and press Enter. The update

begins.

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Lenovo 1165 Bedienungsanleitung Seite 33