Lenovo 5354 Bedienungsanleitung PDF herunterladen (Seite 49)

Chapter 5. Updating system programs

This chapter contains information about updating POST/BIOS and how to recover

from a POST/BIOS update failure.

Using system programs

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

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

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

computer. 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 and 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 POST, BIOS, and the Setup Utility program by starting your

computer with a flash 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/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 (flash)

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

Note: You can download a self-starting bootable CD/DVD image (known as an

ISO image) of the diagnostics program to support computers without a

diskette drive. Go to:

http://www.lenovo.com

Updating (flashing) BIOS from a disc

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

System program updates are available at:

http://www.lenovo.com/support

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

1. Make sure the optical drive you want to use is set as the first boot device in the

startup device sequence. See “Selecting or changing the startup device

sequence” on page 39.

2. Make sure the computer is turned on and insert the disc into the optical drive.

The update begins.

Note: You can insert the disc into the optical drive when you are setting the

startup device sequence. However, if you insert the disc into the optical

drive when you have already entered the operating system, you need to

restart the computer to begin the update process.

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Lenovo 5354 Bedienungsanleitung Seite 49