Power Supply Buzz changing with Graphics Display

MichaelSP

Honorable
Oct 26, 2012
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Hello,
I built a desktop back in late January this year which has always appeared to be fine.
However, Lately I have had to move it up onto a desk (poor wireless reception) from its normal spot on the floor.
The issue is that now I have just noticed that the power supply buzzes very loudly and is quite annoying. (Corsair HX750)
This isn't a constant buzz, more of short bursts of noise every few seconds. Sometimes it has no buzz for some duration (~2 minutes or so).
The strangest thing though is it seems to respond very directly to what is on the screen. Going from dark to light, or scrolling up and down web-pages, it all seems to buzz in sympathy with any movement on the screen.
I couldn't find any situation like this on the internet, and was wondering, is this something to worry about at all?

Configuration:
Intel i7 3930K Processor
Asus P9X79-LE Motherboard
Gigabyte GTX 670 2GB model graphic card
Corsair HX 750 Power supply (modular - still has free plugs)
16GB DDR3 Ram

NO Overclock in place - everything is at stock settings. GPU came with a slight OC I believe.

Thank you for any help with this.
 

MichaelSP

Honorable
Oct 26, 2012
92
0
10,640
Is definitely the power supply. I have tried different screens and there are no speakers.
As for Wifi extension, ironically, I just ordered one about an hour before reading your comment. Good idea hopefully! :D