Ok so umm my computer shuts down and restarts randomly, at un-pattern times. The noise is like whining and groaning sounds that are probably from the fan dying when it restarts and starting back up. This happened two days ago and uh when it first occured it was usually every 10 minutes.. now it's ever hour. I'm not sure what the problem is, I've been told it could be PSU failure, over-heating or a virus/spyware.. I've check the virus part with Kaspersky. I'm really not sure on this and I don't wanna go out buying a new processor or PSU and then I realize the problem is still there. Anyone wanna give me some tips or ways to check and specify what the heck the problem could be?