Ive been having a few problems lately with my SLI setup every time i enable sli i get a no signal to DVI when I'm gaming the, temperatures barely reach 60/65 degree's Celsius iv tried running each card independently and had no issues so i know the GPUs aren't faulty.
My system spec are
2x GTX 480 SLI one card is MSI there other is by ECS
ASUS P6T6 REVOLUTION MOTHERBOARD
I7 920 CPU
ASUS VW266H MONITOR
4GB OF CORSAIR DOMINATOR CMGTX2 2253MHZ
WINDOWS 7 64-BIT HOME PREMIUM
CORSAIR 1000HX POWER SUPPLY
Ive also tried installing the drivers again while placing GPU in the PCIE Slots one at a time.