Weird positional whine

[Leopardi]

I have 2x 800rpm GT and 2x 1150rpm GT running at ~800rpm in a Define R2 situated under my desk, and its pretty quiet before when I move my head to a certain position, then I hear a high pitched *whoooo* multiple times louder than when I keep my head 30cm closer to the monitor. Or when I listen next to the case side panel I don't hear that annyoing whine.

So, is this type of noise somehow silenceable? And I'm curious what's the explanation for this positional noise?

[zoran89]

yeesss... i am not the only one.....i thought that i am going crazy....i also run GT-s and encountered the same problem... and to this day dont know how to fix it ....

[Tetreb]

That's probably a resonance. Maybe it's vibration, then try to dampen big panels with something heavy. Or try diffusors/acoustic (pyramid) foam too.