Hi, i need a bit of help. you guys see when im playing a game like bf4 or another graphics heavy game i only get 324 mhz with my TWO gtx 760 sli.... my fps in bf4 is 50-70 and at the time when i buyed my second gtx 760 i got 80-135 fps so do you guys know what could have happen't and is there a way to fix it!? pls help :/