Advantech ARK-1370, User Manual

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ARK-1370 User Manual 24
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 the 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, the BIOS will recheck the data in CMOS RAM and
automatically restore the original data in the 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.