My imac is perfect beside being able to hear fans when there is no tv, music, or noise anywhere else. They are always audible. Not loud but, still audible. Just sounds like fans blowing air constantly. Does everyone else have the same? My OCD is going crazy thinking its abnormal. Though maybe I should suck it up as my imac is always cool to the touch. Any Input fellow Imac users? I've contacted apple and they weren't much help. Said if anything i could bring it to an apple store so they can take a listen. Though I would like to make taking my 2500 dollar computer to the mall a last resort.