iMac 2010 i7 27" buzzing like crazy

in Current Mac Hardware edited January 2014
Does anyone else have problems with the new 2010 iMac 27" i7 Quad Core emitting quite irritating buzzing noises when the display is sleeping or is dimmed?

It stats buzzing when the CPU temperature reaches 50C+ and the screen goes into power saving mode.

I documented my defective iMac here, I hope it can help others in the troubleshooting of this problem.



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