System Features
EPM-15 Reference Manual
24
CMOS Setup Defaults
The EPM-15 permits users to modify CMOS Setup defaults. This allows the system to boot up
with user-defined settings from cleared or corrupted CMOS RAM, battery failure or battery-less
operation. All CMOS setup defaults can be changed, except the time and date. CMOS Setup
defaults can be updated with the BIOS Update Utility. See the
General BIOS Information page
for details.
Warning!
If CMOS Setup default settings make the system unbootable and prevent the user
from entering CMOS Setup, the EPM-15 needs to be serviced by the factory.
D
EFAULT
CMOS
RAM
S
ETUP
V
ALUES
After CMOS RAM is cleared, the system will load default CMOS RAM parameters the next time
the board is powered on. The default CMOS RAM setup values will be used in order to boot the
system whenever the main CMOS RAM values are blank, or when the system battery is dead or
has been removed from the board.
Real Time Clock
The EPM-15 features a year 2000-compliant, battery-backed 146818-compatible real-time
clock/calendar chip. Under normal battery conditions, the clock maintains accurate timekeeping
functions when the board is powered off.
S
ETTING THE
C
LOCK
The CMOS Setup utility (accessed by pressing the Delete key during the early boot cycle) can be
used to set the time and date of the real time clock.
