I have taken my 2 690's off quad sli and am sticking with the multi gpu config on the one 690 and the games are actually running a little smoother. I think the 2 690's in quad sli was a massive overkill with only my 1 monitor. Only one 690 has 2 gpu's anyway so its sort of like running 2 680's in sli. I think though i will hang on to the other 690 card and wait until the nvidia drivers advance a little more. What do you guys think.