2.1 Introduction
Award’s BIOS ROM has a built-in setup program that allows users to modify the
basic system configuration. This type of information is stored in battery backed-up
memory (CMOS RAM) so that it retains the setup information when the power is
turned off.
2.1.1 CMOS RAM Auto-backup and Restore
The CMOS RAM is powered by an onboard button cell battery. When you finish
BIOS setup, the data in CMOS RAM will be automatically backed up to Flash ROM.
If operation in harsh industrial environments causes a soft error, BIOS will recheck
the data in CMOS RAM and automatically restore the original data in Flash ROM to
CMOS RAM for booting.
Note:
If you intend to change the CMOS setting with- out restoring
the previous backup, you have to click on “DEL” within two
seconds of the
“CMOS checksum error...” display screen message appearing.
Then enter the “Setup” screen to modify the data. If the
“CMOS checksum error...” message appears again and again,
please check to see if you need to replace the battery in your
system.
2.2 Entering Setup
Turn on the computer and press <Del> to enter the BIOS setup.
Figure 2.1: Award BIOS Setup initial screen
2-2 Chapter 2: BIOS setup
