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Appendix A: Post Messages
M54E2 System Board Manual
A-2
Message Possible Cause Solution
MONITOR TYPE
DOES NOT MATCH
CMOS
Monitor type not
correctly identified in
Setup.
Run Setup and enter
correct monitor type.
OPERATING
SYSTEM NOT
FOUND
Operating system
cannot be located on
Drive C: or Drive A:
Check Setup to see if
Drive A: and C: are
properly configured, or
put a bootable disk in
Drive A:
PARITY CHECK 1
nnnn
Parity error found in the
system bus.
Check Setup. Board
repair may be required.
PARITY CHECK 2
nnnn
Parity error found in the
I/O bus.
Check Setup. Board
repair may be required.
PREVIOUS BOOT
INCOMPLETE -
DEFAULT
CONFIGURATION
USED
Previous POST did not
complete successfully.
Run Setup, load default
BIOS settings, make any
necessary adjustments,
and save the changes
REAL TIME CLOCK
ERROR
Real-time clock failed
BIOS test.
May require battery
replacement or board
repair.
SHADOW RAM
FAILED AT OFFSET
Shadow RAM failed. May require repair of
system board.
SYSTEM BATTERY
IS DEAD
System battery died. Replace the system
battery and run Setup to
reconfigure the system.
SYSTEM CACHE
ERROR - CACHE
DISABLED
External (L2) cache
failed BIOS test.
System will still run, but
slower. Replace cache
at convenience.
SYSTEM CMOS
CHECKSUM BAD -
RUN SETUP
System CMOS has been
corrupted or modified
incorrectly.
Run Setup and
reconfigure the system.
SYSTEM RAM
FAILED AT
OFFSET: nnnn
System RAM failed. Replace defective RAM.
SYSTEM TIMER
ERROR
Timer test failed. Requires repair of system
board.