Troubleshooting Without Diagnostics

Solving Power Supply Problems

Common causes and solutions for power supply problems are listed in the following table.

Solving Power Supply Problems

Problem

Cause

Solution

Power supply shuts down

Voltage selector switch

intermittently.

on rear of computer

 

chassis (some models)

 

not switched to correct

 

line voltage (115V or

 

230V).

Select the proper AC voltage using the selector switch.

Power supply will not turn on because of internal power supply fault.

Contact an authorized service provider to replace the power supply.

2–10

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Troubleshooting Guide