Sacred Haven of Debauchery

I turned on the computer, went to the kitchen, came back, and got a BSOD. I turned it off, turned it on, went away. I came back five minutes later, and the Windows loading indicator was frozen, with red lights on the case blinking continuously. I waited a couple of minutes, turned it off, turned it on, and the BIOS wouldn't start. I was freaking out. I went to have breakfast, came back, and everything started working.