i have a problem. I get a black screen when i start up i have checked sites on the internet and they have been no use to me I'm running and asus p8h61 b3 revision (no on board graphics which i suspect that, that is the problem) a gtx650 tested, i5 3330 and Kingston kvr1333D3N9H/8G, 8GB of course and i have had no luck with it. Nothing comes up and the monitor doesn't pick up that the PC is on. This is my first build, PLEASE HELP