Ive read a lot of ppl with troubles with their 2 x gtx 690 sli scalation but didnt find solution jet :( Please help! How did u solve your problems with ur 2 x gtx 690? my email es cmgver[at]gmail
 
My quadsli doesnt work with many games, i have drastically drops of FPS in games like battlefield and i cannot use sorround 3 screens in many games too. I discover by accident that when i use no SLI configuration then it works better with no FPS drops, so is not the RAM or CPU.
 
My rig is:
2 x 690
mb asus rampage IV
cpu 3930k
4 x 4 gb Tridentx G Skill
2 x 128 gb ocz vertex RAID 0
1 x 4 tb western digital caviar black
 
bios firmware in my 690s are: 80.04.1E.00.90 80.04.1E.00.91
 
Thanks a lot! and i will appreciate any clue of how did u solve ur problem.
CM

in fact 2 x 690s are 4 gpus and many ppl can use them for games but for many others not, at least what i read in posts in 2012, now the must have solved this but im lost.... dont find a conclusion........ :/