Advantech PCM-3353 Uživatelský manuál stáhnout pdf (Strana 22)

PCM-3353 User Manual 14

3.1 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 mem-

ory (CMOS RAM) so that it retains the setup information when the power is turned

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 software error, the 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 check for the ìpatch codeî. If there is a number assigned to

the patch code, it means that the BIOS supports your CPU.

If there is no number assigned to the patch code, please contact Advantechís appli-

cations engineer to obtain an up-to-date patch code file. This will ensure that your

CPUís system status is valid. After ensuring that you have a number assigned to the

patch code, press <Del> to enter the setup.

Figure 3.1 Award BIOS setup initial screen

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.

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