Today i picked up a second gtx 680 ftw. I plugged it in, enabled sli and set up surround, opened up EVGA Precision X to make sure the clocks were at the same speed, and then i opened Bf3. My fps was at 5-8, then jumped up to 200, then it jumped back down, and kept repeating this. SLI is enabled in Nvidia control panel, my computer recognizes there are two 680's in there, but the FPS is being weird. When i monitor what is happening in EVGA precision X, the cards clock speed jumps up and down from 1254 to 345, and keeps on doing this. Has anyone ever heard of this and know of a solution or have any ideas what could be causing this? Thanks for any help in advanced!