Cuz I have 1 80mm fan...
I have one from thermaltake. Once on, you barely notice it's on
alvino said:80mm fans are too loud. Either they're too loud or they're too weak (sometimes both). If you want quiet 80mm fans, use Panasonic Panaflos. The HydroWave bearings they use are REALLY good. They eliminate the whining noise that happens with normal bearings and last longer.
I have one from thermaltake. Once on, you barely notice it's on