Quote Originally Posted by Ace-a-Rue View Post
there are 4 coils embedded in individual cases with silicone around the coils...if there is not enough silicone, it will make harmonic sounds..these coils are just next to the PWM heatsink....higher load affect these coils by making them work harder, i presume, at dampening the pulses in current....you can always add more silcone.
That was my initial thought too, that it was the coils.

Now I just don't know anymore, since the noise is practically gone with my Seasonic S12 PSU. If the noise is coming from the motherboard, it must be something with the combination of mobo and PSU.

Thing is I would really like to use my Corsair PSU because of its modular cable system.

It is a power realated issue though for sure. I run a Q6600 @ 3.6 and if I go back to stock clock the problem pretty much disappears.