new built computer turns off
i5-3570k 3.4ghz processor
as rock z77 extreme 4 mobo
evga gtx 660 gddr5 2gb superclocked graphics card
corsair vengeance 8x2 16gb ram
power supply cx600 corsair used it because i had it
212 evo heatsink
when i built the computer i turn on the power supply the pc turns on by itself without having to press the power button which is strange, but it turns on then like 5 seconds later turns off even with the power supply on the reset button and some other button still have the light on when this happens, the fans also stop spinning and it all turns off, what could be causing this? did i plug in something the wrong way or is the motherboard faulty? who knows how i could find out? or is it the thermal paste on the 212 evo and the processor is it causing the problems?