I have this, with the stock fan, coupled with the AMD PhenomII 1100T (Not overclocked yet) With this I get about 21 degrees C Idle. Very Quiet! The only other thing I can think of thats worth mentioning is that the RAM slot closest to the CPU WILL have clearance issues with AMD systems. I have GSkill Ripjaw, and have just barely enough room. However the fans dont screw onto the heatsink, the whole bracket slides down from the top, so even with taller RAM heatsinks you could still use this, you just won be able to slide the fan all the way down the heatsink.