I replaced my Antec 900 with the Corsair 550D. My brother comes in the room and picks up my graphics card when Im assembling everything and my heart drops. So anyway, I get everything into the case and start it up. I hear all the fans in the case going, but no display, monitor goes black. I unplug the DVI from my graphics and try plugging the DVI into the motherboard to see if my graphics card was the problem, but I come up with the same result. Anyone have any suggestions?