Review on Silent Power: be quiet! Pure Wings 2 120mm PWM High-Speed Cooling Fan BL081 by Michael Godo

Replacing the decent but not great (in terms of noise) fan that came with my 7th Cooler Master 212 CPU cooler was obvious easier than I feared. There are several videos on YouTube on how to do this and the process took about 15 minutes. The process was complicated by the addition of a fan speed controller, but it was mostly the cable. So far so good. The big surprise came when I turned on the computer after the installation was complete. Nothing has happened. I checked everything and lo and behold, the newly installed fan was spinning (this creates a nice pattern of concentric circles) and there was NO SOUND from the computer at all. Please understand that I build low-power computers that rarely have processor temperatures above room temperature. (But these computers work great. I don't play.) So far very, very happy with this purchase. Congratulations to the Be Quiet team!