i dont know what happened i booted up and went in to the bios and did some overclocking and when i saved and exited it restarted but the screen stayed black. so i turrned it off and tried to turn it on again and nothing. no boot no signal nothing!!! then about 30 minutes later it turned on on its own!!! then i had the time of my life trying to get widows to work because i kept getting the Fatal BLUE screen!!!! so i had to install windows on a new HD. and now the damn thing turns on when it wants to. WHAT THE HELL!!!!!!!!