I've been waiting for one of these to fit on my fx 5900 for quite a while. Haveing a case with low air flow made useing a heat pipe rather dangerous(temps on the card were hitting 75'c underload) so these seem to offer a very good solution. Word from Artic Cooling is that the next revision NV Silencer will fit on recent Nvidia cards......however they also told me that the revision 3 would as well.