do you have much noise in your room?
They are surprisingly quiet.
Whats really surprising is why/how so many people expect noise when adding fans.
4x 120mm/case + 1x 120mm/cpu + 4x 92mm/gpus + 1x 135mm fan/psu = Pretty freakin quiet !
M fans are pretty quiet when ly girl making some noises :O i cant hear any fans