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Problem
Symptom
Operating system
"Invalid Configuration" message
does not boot,
displayed.
cont'd
Computer halts during loading
sequence.
Diskette drive does
Lamp on drive 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.
8-8 Troubleshooting
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 computer is powered on.
1. Power the computer off. Check for
proper jumper settings (see Section 2), then
power-on the computer.
2. Check condition of 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.
4. Verify correct hard disk is selected.
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 riser board.
6. Replace system board.
1. Check cable connections between lamp
and system board.
1. Check that the IDE channel and hard
drives are enabled in Setup (see Section 2).
1. Check signal/power connections
between hard disk, PCB, 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 (or hard drive
controller PCB if the system board
controller is not used).
6. Replace riser board.
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