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Chapter 4 Award BIOS Setup
4.1 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 memory (CMOS RAM) so
that it retains the setup information when the power is turned off.
4.1.1 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 without 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.
4.2 Entering Setup
Turn on the computer and check for the "patch code". If there is a number assigned to the
patch code, it means that the BIOS support your CPU. If there is no number assigned to the
patch code, please contact Advantech's applications engineer to obtain an up-to-date patch
code file. This will ensure that your CPU's system status is valid. After ensuring that you have
a number assigned to the patch code, pressing <Del> to allow you to enter the setup
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