4-12 Troubleshooting and Repair
Table Section 4-3 Problems and Solutions
Problem
Symptom
Solution
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 and power connections
between hard disk, PCB, and power
supply.
2
. Check drive jumper settings (refer to
Section 3).
3
. Check power supply and replace
hard disk cable.
4
. Replace hard disk.
5
. Replace system board (or hard disk
controller PCB if system board 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 3).
4
. Replace SIMMs.
5
. Replace system board.