@Alcadeias2 Yes - it was easaly the noisiest component in the computer. Even when my GTX 560 started to ramp' up it was the PSU that was noisiest. If your PSU shows the same symptoms you might want to contact corsair for a replacement. The error-rate on those PSU's seems to be quite high.
@hinksta47 No. It's coil-whine and annoying.