Fixing Computers

 Simple steps to check power supply failure.

1. Check the power supply switch. If the power supply LED is off and no red alarm condition exists, check that you have on the power switch.
2. Check the circuit breaker. Check that each circuit breaker has the proper current rating. Make sure that the power switch on the circuit breaker is on. If the circuit breaker has tripped, reset it.
3. Test your power supply by switching it with another one. Do not touch the power connectors on the back of the power supply and do not open the power supply up.

To do troubleshooting on the power supply using flowchart, please refer to the chart below. It is a detailed flowchart on power supply failure taken from "Computer Repair with Diagnostic Flowcharts".