Coil whine

[Krankyboi]

Hey! Essentially since today I've been getting this really annoying coil whine is what I believe is called, out of nowhere too just suddenly started. 

 

I've done some tests and what not and have figured when it starts, when it stops and what not, and hopefully somebody can tell me 1. Where the coil whining is happening and 2. If I can fix it. 

 

1. When I startup my PC, the coil whining does not begin until about 20-30 minutes of having the PC turned on. If I shut down the PC, as soon as I click ''restart'' or ''Shut down'', the coil whining stops. 

2. The coil whining only happens in desktop/Chrome usage. If I run for example CSGO and get into a map, it stops no matter where I look in the map etc. 

3. If I run a stress test called Prime95, the coil whining stops, as soon as I close it, the coil whining starts again. 

 

I have tried going into the BIOS and turning off anything that has ''Power savings'' and ''Voltage savings'' etc for the CPU, however no luck. 

 

Xeon E3 1231V3 

asus b85m-g plus/usb 3.1

MSI Gaming R9 380

EVGA 550W PSU

8GB RAM

[Krankyboi]

lol so I just did some more digging around literally after posting this and found a user saying that turning off Realtek HD Audio removed the coil whining for him so hey...why not try right? I just went into processes and turned it off, and the coil whining is gone, my audio still works too, really strange. Not sure if permanent solution, but hey it is what it is. Maybe some explanation? 

 

It appears it also has dropped my GPU temperatures by 30 degrees celsius