PC turn on and off

[WTJ105]

What could be the problem?

 

[InvalidError]

You need to list your system specs including the exact brand and model of your PSU and also tell more details about how your PC ended up "turning on and off."

The PSU is the most common cause of random on/off issues but not always.

 

[badboyrog2]

it can be a thousand of things

psu/motherboard/memory/bios/cmos battery/hdd/gpu if installed /hardware not detected etc etc...

http://www.tomshardware.com/faq/id-1893016/post-system-boot-video-output-troubleshooting-checklist.html

 

[WTJ105]

The psu is Antec atx 12v v2.4 550w. I just plug the cable to the outlet and press the start button on my case. After a few secs it turns off and turns on automatically