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My gpu's don't have coil whine, but that first test makes mine screech a bit. As long as it doesn't sound like that normally id just ignore it. Could be either psu/mobo/gpu.
Uploading 2 videos to YouTube atm. Will give you a better idea but the 3DMark one really does sound nasty.
EDIT: Yeah I don't think it's the GPU.
3DMark vid: http://www.youtube.com/watch?v=OsuCMp3fpVI
Bioshock vid: http://www.youtube.com/watch?v=CCtFL4KBRV0 (A lot less noise)
Terrible video quality but it about the noise
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