I have a bfg 680i sli. All the mounting though is done by the actual mount that is screwed into the mobo tho. I think the prob could be poor design. THe actual mounting arm is round and the mounting point on the socket is round so its no wonder that the cooler can rotate freely. I think that the arctic cooler has set, so my idles have dropped down a little, plus ive realised how ludicrously hot my room is. With the window open and door on my praetorian open i get idles of 30 and peaks of 41 under full load. Part of my temp probs could be the 8800, I remember when i went from ATI 9600 to x800 my temps went up by about 4-5.