Table 6-2 Power supply problems (continued)
Problem Cause Solution
c.
Replace the device causing the failure
d.
Continue adding devices one at a time to verify
that all devices are functioning.
2.
Verify power supply functionality.
a.
Disconnect AC power.
b.
Remove the internal power supply cables from
the system board. (You do not need to remove
the power supply from the chassis.)
c.
If necessary, disconnect the PCIe power cable
from the graphics card.
d.
Plug in AC power.
●
If the power supply fan spins and the LED
illuminates, the power supply is good.
Replace the system board.
●
If the power supply fan does not spin or
the LED does not illuminate, replace the
power supply.
Solving diskette problems
Table 6-3 Diskette problems
Problem Cause Solution
Diskette drive light stays on. Diskette is damaged.
1. Right-click Start, select Explore, and then select a
drive.
2. Select File>Properties>Tools.
3. Under Error-checking, select Check Now.
Diskette is incorrectly inserted. Remove and reinsert diskette.
Files on the diskette are
damaged.
Verify the program diskettes.
Drive cable is not properly
connected.
Reconnect the power cable and verify that all four pins
are connected.
Drive not found. Cable is loose. Reseat the diskette drive data and power cables.
Removable drive is not seated
properly.
Reseat the drive.
176 Chapter 6 Diagnostics and troubleshooting ENWW
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