Advantech PCE-5130, User Manual

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PCE-5130 User Manual 38
3.1 Introduction
Award’s BIOS ROM has a built-in setup program that allows users to modify the
basic system configuration. This information is stored in battery backed-up memory
(CMOS RAM) so that it retains the setup information when the power is off.
3.1.1 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 oper-
ation 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.
3.2 Entering Setup
Turn on the computer and press <Del> to enter the BIOS setup.
Figure 3.1 Award BIOS Setup initial screen
Note! If you intend to change the CMOS settings without restoring the previ-
ous 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.