i made a new pc and it keeps on turning on and off byitself i have not installed any bios or stuff like that(it hasnt given me a chance to see anything)it stays on for 12 secs and turns off and this process repeats.I took everything out and tested it with the motherboard,cpu,cpu cooler and ram still the same result
btw i may have but too less thermal paste on but it has been on long enough to heat up