I was running SLI with these identical GeForce 9800 GTX+ cards on my previous system. I have recently upgraded the motherboard, processor, ram, and OS to Windows 7. After all the updates and drivers and whatnot, there is no SLI option in the control center
2x PNY 9800 GTX+
Intel i7 2600K
Windows 7 x64
Corsair power supply - this cant be the issue since it worked before the upgrade...
Things I have tried:
BIOS - no options for SLI. Only PCIE option is the timing or whatever.
Video drivers - tried current, previous, and beta releases
Motherboard drivers - tried current, previous, and beta releases
Onboard LAN/Audio - tried disabling these (they are Realtek) and resinstalling the video drivers, no luck
SLI Bridge - tried two different ones, rotated both
Card slots - only 2 slots on this board, tried swapping cards
Also tried booting with just 1 video card then installing the second
Both video cards appear as distinct devices in the nVidia Control Center, Device Manager, and GPU-Z. Identical Device IDs
Both cards are in x16 slots, but running as x8 since I think that is the capacity of the cards.