4-6 Maintenance and Troubleshooting
Table Section 4-2 Problems and Solutions
Problem
Symptom
Solution
Operating system
does not boot
Intermittent beeping at power-
on. Computer beeps more
than once and is unable to
complete boot-up.
1
. Check system configuration and jumper
settings (refer to Appendix B).
2
. Verify that drives are enabled.
3
. Reseat SIMMs and option boards in
their connectors. Inspect system board for
dropped objects.
4
. Remove option boards and reboot.
5
. Replace system board.
“Invalid Configuration”
message displayed.
1
. Press
F1
to run Setup and correct the
parameters.
2
. Replace the CMOS battery if the date
and time must be set each time the
computer is powered on.
Computer halts during loading
sequence.
1
. Power the computer off. Check for
proper jumper settings (see Section 2),
then power-on the computer.
2
. Check condition of selected bootload
device (diskette or hard disk) for bad boot
track or incorrect OS files.
3
. Try booting OS from diskette or recopy
OS files onto hard disk.
4
. Verify correct hard disk is selected.
Diskette drive does
not work
Lamp on drive panel does not
light when diskette is loaded.
1
. Check power and signal cable
connections between diskette drive,
system board, and power supply.
2
. Check diskette drive jumpers.
3
. Check power supply and replace
diskette cable.
4
. Replace diskette drive.
5
. Replace system board.
Hard disk
malfunction
Hard disk drive lamp does not
light but hard disk drive can
be accessed.
1
. Check cable connections between lamp
and system board.
Hard disk controller failure
message displayed.
1
. Check that the IDE port and hard disk
drives are enabled in Setup.
