When the computer is switched on, it automatically loses power.

Failure one, the main box panel power switch can not be reset.

1, first open the computer chassis, on the computer board to find the word "power" two pins, this is the switch, Peset is a reset switch, power-led is the power switch led, hdd-led is the hard drive indicator, Sptaker is the chassis speaker and speakers.

2, we only need to find the power of the word two pins, pen or wire, and then connect a pin and then let go, if the computer can be normal boot is the main box panel switch can not be reset.

3, unplug the chassis power supply, remove the front panel of the main switch, find the power switch, drip lubricating oil repeatedly press several times to enable it to reset, or replace the power switch can be.

Fault two: May be a computer system failure or computer virus, this time will get repair department repair.