Table 6-1
Minor problems (continued)
Problem
Cause
Possible Solution
LED does not illuminate (see
Testing power
supply on page 225
), replace the power
supply.
Solving power supply problems
This section presents power supply troubleshooting scenarios.
Testing power supply
Before replacing the power supply, use the Built-In Self-Test (BIST) feature to learn if the power supply
still works.
To test the power supply:
1.
Disconnect the AC power.
2.
Remove the power supply.
3.
If necessary, disconnect the PCIe power cable from the graphics card.
4.
Plug in AC power and verify the following:
●
If the green BIST LED on the rear of the workstation is illuminated
and
the fan is spinning, the
power supply is functional.
●
If the green BIST LED is not illuminated
or
the fan is not spinning, replace the power supply.
See the
Rear panel components
section of this service guide to locate the BIST LED on this workstation.
Table 6-2
Power supply problems
Problem
Cause
Solution
Power supply shuts down
intermittently.
Power supply fault.
Replace the power supply.
ENWW
Troubleshooting scenarios and solutions
225
