? What? Disconnect each fan individually and see if the sound is still there. You might get an error or warning at some point when you disconnect the CPU fan, but don't worry about it so long as you don't keep it disconnected for more than a few minutes.

no, i don't have this problem, i failed to mention. this isn't the type of post asking tech support, i heard my dog flipping his bowl -- outside and for a sec i wondered is it possible that these sounds come from the case then said, naah. then i decided to make this topic to see is this possible in general. its a bit refreshing after all these tech problems, but sorry for taking your time : ) /i should of called tech support line with this, it would fit well in existing collection lol