i have a volcano 11 hsf on my cpu. the damn thing was really loud. then i got looking one day and i also have a fan in the middle of the window on the side of my case. it had a plain old grill on it. so i took the nice looking grill off the v11 (bundled all the wires out of the way) and put it on the led fan in the window. well my case looks a lot better and the fan is quiet. i have 6 fans running and can barely hear them. so for everyone that wants a quality , quiet cpu fan, get a v11 and take the fancy grill off it......