Troubleshooting Guide

2–10 www.hp.com Troubleshooting Guide
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
intermittently.
Voltage selector switch
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.