I have an evga geforce gtx 760 overclocked 2gig gpu with an intel i5 4670k cpu, asus z87-pro mobo and corsair RM750 psu. My gpu makes a pretty loud buzzing/radiator-like sound when it gets warmed up at times and othet times when under load. If I put support under it or lift up on the cables some it stops but when I let go it will keep doing it. The bracket is tight but I think the modular cables (which are pretty stiff) are putting strain on it. Any suggestions? Temps and fan work fine and I don't thunk it is the acx fan that came with it.