User`s manual

PCM-3347 User’s Manual 28
Chapter 4 Award BIOS Setup
4.1 System test and initialization
These routines test and initialize board hardware. If the routines encoun-
ter an error during the tests, you will either hear a few short beeps or see
an error message on the screen. There are two kinds of errors: fatal and
non-fatal. The system can usually continue the bootup sequence with
non-fatal errors. Non-fatal error messages usually appear on the screen
along with the following instructions:
press <F1> to RESUME
Write down the message and press the F1 key to continue the bootup
sequence.
4.1.1 System configuration verification
These routines check the current system configuration against the values
stored in the boardís CMOS memory. If they do not match, the program
outputs an error message. You will then need to run the BIOS setup pro-
gram to set the configuration information in memory.
There are three situations in which you will need to change the CMOS
settings:
1. You are starting your system for the first time.
2. You have changed the hardware attached to your system.
3. The CMOS memory has lost power and the configuration informa-
tion has been erased.
The PCM-3347ís CMOS memory has an integral lithium battery backup.
The battery backup should last at least five years in normal service. When
it finally runs down, you will need to replace the complete unit.
4.1.2 Further CMOS Data Safeguards
The PCM-3347 uses 2 additional functions that help ensure the integrity
of the CMOS memory data. A Batteryless CMOS bootup function as well
as automatic CMOS data refresh, are both utilized. Both these functions
rely on utilizing free space in the BIOS Flash memory. Also, since the
CMOS memory data and BIOS Flash saved CMOS memory data are
stored simultaneously, you are always guaranteed an exact duplicate of
the original CMOS memory data.