I945G2-IQNAR
46 i945G2-IQNAR User’s Manual
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.
