Hi first ... So I do not know where to start, I think the cooler is just perfect, 65-70 is indeed quite a lot of money, but compared to the Noctua DH-14, which indeed is the direct competitor, see not only the fans better, but also the cooling performance is better and the whole thing weighs just about 500 grams less ... but still quite a lot ^^ install the cooler goes on all sockets, you should just be careful that you do not have RAM with large heatsinks , otherwise you have the fan blowing instead of sucking mount, but also works great (both have already tested). the design itself, I find really great, you can twist the heat sink in 90 ° directions, so that it blows to the back or up and the fan can be thanks symmetry of the heat sink grow arbitrarily. Personally, I have the two rotating fan at my Lüftersteurung, the idle I let them mostly at 870 rpm, thereby remain my i7-920 still below 40 ° C and stays nice and quiet (as far as I can judge at present, definitely is my 4670 so loud that I could not hear him) and when I come prim95 and the fan'm running under full load the Prozzi not more than 56 ° C (max Tem 100 ° C) are, however, rel. Loud noises (does not bother me - last = = Game Sound from the game). I hope I could help many, contact ask! lg, Luke S.
