4-8 Maintenance and Troubleshooting
Table Section 4-6 Problems and Solutions
Problem
Symptom
Solution
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
(see Section 3).
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.
Cannot access hard disk.
1
.
Check signal/power
connections between hard disk,
PCB, power supply.
2
.
Check drive jumper settings
(see Section 3).
3
.
Check power supply.
4
.
Check hard disk cable and
hard disk. Replace as necessary.
5
.
Replace system board (or
hard disk controller PCB if the
system board controller is not
used).
Memory malfunction
Total memory is not recognized.
1
.
Reseat SIMMs.
2
.
Systematically swap SIMMs.
3
.
Check to see if the SIMM
configuration is valid (see Section
4).
4
.
Replace SIMMs.