My PC is almost completely new and I travel with it to and from college. I just arrived back from winter break and I plugged everything in and she turned on then off, I thought it maybe was from the travel so I left it sit for a bit and tried again and it turend on for a while, then i shut it down again, I went to play later and the same thing happened, it was turned on for about 15 minutes then she shut down. Not even 5 months ago a new MB, PSU,GPU and RAM were all put in! I am freaking out here! I dont want to drop another 500 bucks! Any help??, thank you!!