How to POSSIBLY make PSU Coil Whine Quieter

[Unicornio]

Ok, So I'm sure you know what coil whine is.
Sometimes it can be cause by the GPU, motherboard, or in my case...The PSU.
I had looked for a while at a fix and failed 🙁
But recently I found out a way to make it kinda go away (Make it reasonably quieter)

Its pretty simple, in the games that you get coil whine. All you want
to do is enable v-sync IN GAME (not at Nvidia Control Panel)
This made it get quieter and I can play without that high pitched noise 😀

(Dont get mad if this didn't work, is said it COULD help you)

-Unicornio

My Crappy PC that I will very soon upgrade 😀
GTX 660 SC
AMD A6 6400K
550W PSU
8gb Ram
Some Cool Gold pc case for like 50 quid....