[VIDEO] What is this sound my brand new PSU doing?

[DougFrippon]

I got this CORSAIR Professional Series HX1050 1050W PSU, to power up my new rig.. basically Intel 3770k IVY with dual GTX 670 sli.

Whenever my computer is under heavy GPU load, the PSU starts doing some weird sound. And it's really just under HEAVY GPU load.
Video convertion / Prime 95= no sounds.
Normal games like Diablo3 = no sound.
Uningine and 3Dmark and such = huge sounds...

I was convinced the sound came from my video card (since the sound appears when I use the GPUs intensively) But no, it's really coming from the PSU unit, I guess they video cards must be draining extra wattage under heavy load which explain the link.

So, have you guys heard that before?
I guess I'll have to RMA now... 2-3hours worth of cable management to the trash 🙁
http://www.youtube.com/watch?v=FVxA54Cxlxo

edit: solution.. I found out this is coil whine, and that we can't do much about it..

 

[lehtv]

Could be coil whine, RMA is really all you can do...

FYI HX1050 is about 500 watts overkill for your 670 SLI rig. Could power 670 Quad SLI with that.

 

[Agent-A01]

Coil whine. Usually stressing it out for a while gets rid of the noise. Use occt psu tester run it for 30mins or an hour.