NEC PowerMate Enterprise Manual page 181

Problem Symptom
Diskette drive Lamp on drive panel does
does not work not light when diskette is
loaded.
Hard drive Hard drive lamp does not
malfunction light but hard drive can be
accessed.
Hard drive controller failure
message displayed.
Cannot access hard disk.
Memory Total memory not
malfunction recognized.
Modem board No output from board.
malfunction
Table 4-2 Problems and Solutions
Maintenance and Troubleshooting
Solution
1.Check power and signal cable
connections between diskette drive,
riser board, and power supply.
2.Check diskette drive cable. Replace
as necessary.
3.Check power supply.
4.Replace diskette drive.
5.Replace system board.
6.Replace riser board.
1.Check cable connections between
lamp and system board.
1.Check that the IDE channel and
hard drives are enabled in Setup.
1.Check signal/power connections
between hard disk, PCB, power
supply.
2.Check hard drive jumper settings.
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).
6.Replace riser board.
1.Reseat DIMMs.
2.Systematically swap DIMMs.
3.Check to see if the DIMM
configuration is valid (see Section 1).
4.Replace DIMMs.
5.Replace system board.
1.Check interrupts (see Section 1).
2.Check DMA channels (see Section 1).
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