Summary: Stick with a fan that's designed specifically for your rig. don't buy into the hype.
Pros: Don't know. Couldn't get it installed.
Cons: Warning: this fan can be impossible to install. it requires you to remove the heatsink/fan mount from your 939 mobo so that you can use some proprietary Zalman connecter (it has an amusing name that newegg cesnored from this review). this would be fine except that on my mobo the fan bracket is no...
Summary: after several months use, the cooling capacity of this thing disappeared. my CPU temp rockets to over 75 degrees before it shuts down completely. this cooler worked well when i first bought it but it sucks now.
Cons: stopped cooling after several months. same as or worse than stock cooler now.