User Guide

2-4 Troubleshooting
2.3 POST Error Messages
If the system is not functioning well enough to run POST, or if the display is not
functioning well enough to show POST error messages, refer to the Troubleshooting
tables in Section 2.5.
If POST detects an error, one of the following events occurs:
■ A message with the prefix "WARNING" appears, informing you where the error
occurred. The system pauses until you press F1 to continue.
■ A message with the prefix "FATAL" appears, informing you where the error
occurred. After the message, the system emits a series of beeps, then stops.
■ The system emits a series of beeps, then stops.
Warning messages indicate that a potential problem, such as a system configuration
error, exists. When F1 is pressed, the system should resume. You should be able to
correct problems that produce WARNING messages.
If you receive one of the error messages listed below, follow the recommended action.
Table 2-1
Warning Messages
Message Description Recommended Action
CMOS checksum invalid, run
SCU
CMOS RAM information has
been corrupted.
Run Computer Setup to
reinitialize CMOS-RAM.
CMOS failure, run SCU CMOS RAM has lost power. Run Computer Setup to
reinitialize CMOS-RAM.
Diskette controller error The diskette drive
controller failed to respond
to the recalibrate
command.
If there is no diskette drive in
the system, run Computer Setup
to properly configure the CMOS-
RAM to show no diskette drive
present. If the problem persists,
or if a diskette drive is present,
complete these steps until the
problems is solved:
1. Check diskette drive
connections.
2. Replace diskette drive.
3. Replace system board.
Diskette track 0 failed The diskette drive cannot
read track 0 of the
diskette in the drive.
Try another diskette. If the
problem persists, you may need
to replace the diskette drive.
Continued