i brought a new pc case earlier and i transferred my components over from my old case to the new one... little accident and i forgot to plug the cpu fan in.. the pc was on for around half an hour then it shut off. i thought wtf so pressed the power button again and it started to boot then shut off again. so i had a look inside and noticed the cpu fan wasnt spinning and realised my mistake. so i started to pull the case back out and i accidently hit the power button and i heard like a pop or a snap noise come from my pc. i didnt see if there was a flash or anything. but now the pc wont turn on. any ideas whats broke??