NEC POWERMATE P60D - Page 107

Maintenance and Troubleshooting 4-9
Table Section 4-6 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.