I am trying to setup my pc in SLI with a dual gtx 260. i have an asus rampage ii gene motherboard. I plugged them up along with the bridge. The pc recognizes both cards are present but in the nvidia control panel it does not give me an option for SLI. I know this motherboard supports SLI. I also updated to the latest bios from ASUS. not sure what the problem could be. any ideas?
What is the make and model of each of the GeForce GTX 260 graphics cards? Those cards were available using GT200 GPUs based on different process technonologies.
Does one of them use a GT200 (65 nm process) with 192 CUDA Core GPU and the other one use a GT200a/b (a = 65 nm or b = 55 nm process) with 216 CUDA Core GPU? If the answer is yes then SLI isn't going to work.
The GPUs and Memory Interface Widths on both cards have to be the same.