The noise level of the fan, can be down its speed of rotation (via software) depending on what is desired. When choosing a low speed it is absolutely not hear (on average use I put his speed to low and it only goes up to 43 ° so to say ..).
In full speed we hear, but fortunately it really makes little noise, which is not annoying at all. If you play, either way you will not hear it, its noise is so low that it will be quickly camouflaged by all the ambient sounds.
Finally for installation is a bit hot on AMD socket, you have before getting the press to demean a little iron supports (if not good luck for the screw).
Conclusion: buy eyes closed.