NEC POWERMATE ES Series Service And Reference Manual page 99

Problem Symptom
Operating system "Invalid Configuration" message
does not boot displayed.
(cont'd)
System halts during loading
sequence.
Diskette drive does Lamp on front panel does not light
not work when diskette is loaded.
Hard drive Hard drive lamp does not light but
malfunction hard drive can be accessed.
Hard drive controller failure
message displayed.
Cannot access hard drive.
Memory malfunction Total memory not recognized.
Problems and Solutions
Solution
1. Press F2 to run Setup and correct the
parameters.
2. Replace the CMOS battery (see
Section 3) if the date and time must be set
each time the system is powered on.
1. Power the system off. Check for proper
jumper settings (see Section 2 and
Section 4), then power-on the system.
2. Check the condition of the selected
bootload device (diskette, disc, or hard disk)
for bad boot track or incorrect OS files.
3. Try booting OS from diskette or disc, or
recopy OS files onto hard disk (see
Section 2).
1. Check cable connections between
diskette drive and system board.
2. Check diskette drive cable. Replace as
necessary.
3. Check power supply.
4. Replace diskette drive.
5. Replace system board.
1. Check cable connections between lamp
and system board.
1. Check that the IDE channel and hard
drive are enabled in Setup (see Section 2).
1. Check signal/power connections between
hard disk, system board, power supply.
2. Check hard drive jumper settings.
3. Check power supply.
4. Check hard drive cable and hard drive.
Replace as necessary.
5. Replace system board.
1. Reseat DIMMs.
2. Systematically swap DIMMs.
3. Check to see if the DIMM configuration is
valid (see Section 4).
4. Replace DIMMs.
5. Replace system board.
Troubleshooting 7-7