Pros: Large fan, which should dissipate a lot of heat

Cons: I'll never know how good it might have worked, since the fan didn't have enough clearance for capacitors that were right next to the CPU. Had the bottom of the fins been about 3-4mm higher, there'd have been no problem, but as it stands, there was no way to lock it down without squashing the caps right by the CPU. I checked all THREE of my other Athlon 939 motherboards, and NONE of them had their caps far enough away that this fan could have been used.

Overall Review: Great idea, absolutely terrible execution. A bit of research by Masscool on ways they could make this useful to a majority of systems would have been nice. It's frustrating that I wanted the additional cooling, but can't actually use the heatsink and return shipping doesn't make it worth returning.