Troubleshooting 2-5
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.
Hard disk controller error The hard drive controller failed
to respond to the reset
command.
Check the drive parameters. Turn off
the system and check all related
connections.
Keyboard controller failure The keyboard failed the self-
test command.
Replace the system board.
Keyboard failure The keyboard failed to respond
to the RESET ID command.
Replace the keyboard. If the problem
persists, replace the system board.
No interrupts from Timer 0 The periodic timer interrupt is
not occurring.
Replace the system board.
ROM at xxxx (LENGTH yyyy) with
nonzero checksum (zz)
An illegal adapter ROM was
located at the specified
address.
Check the external adapter (such as a
video card) to determine if it is
causing the conflict.
Time/Date corrupt - run SCU The time and date stored in the
real time clock have been
corrupted, possibly by a power
loss.
1. Run Computer Setup.
2. If problem persists, replace
auxiliary battery.
3. If problems persists, replace
system board.
Hard disk xx failure (or error) A failure or an error occurred
when trying to access the hard
drive.
1. Run Scan disk.
2. Check disk in DOS and
Windows 95. If problem persists,
refer to Table 2-10.
Unsupported memory module An EDO memory module was
installed in the memory
expansion slot.
Remove the EDO memory module
and replace with SDRAM memory
module.
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