Possible fixes to Coil Whine from link above. Need to go to link to find out the possible fixes. Copied from link:
What Can I Do About It?
Sadly, there isn’t an easy fix for coil whine, like an updated driver or a Windows setting. It’s a physical property of your graphics card (or any other component you can hear exhibiting the noise). The fixes for the problem, therefore, are going to be physical in nature. You have a few options.