I put together my new system yesterday, and everything was going great till I tried to add my two BFG GeForce 8800GT's. I get nothing but a black screen when I put them both in. I have tried putting each individual card in each of the 3 16x PCI-e slots and the work fine individually. I did every update I can think of...bios, video cards everything...and looked everywhere in the bios but can't figure this out. Any suggestions?
MSi P7N Diamond 780i Motherboard
Q6600
2x2gb corsair dominator 8500 1066MHz
Corsair TX 750 Watt
ZEROTherm Nirvana
2 x WD Caviar 500 GB HDD
Thanks