Question How do I stop the fan noise coming from my line out jacks on z390 AORUS Pro?

[Yoiji]

I just got this motherboard and the fan noise is really bad. I am not sure if I plugged everything in correctly. The front and rear line out jacks cause this noise.

 

[drea.drechsler]

... I am not sure if I plugged everything in correctly.
...

The obvious thing is to go back and double check all your connections... do it by the manual.

But the problem makes no sense as there's no reasonable way that fan noise can radiate from the line out jacks.

 

[johnsoner13]

Can u try with a usb sound device?

 

[Yoiji]

Can u try with a usb sound device?

I don't have a USB sound device and it is not really fan noise. Kinda like a electronic wirrling. I tested 3 headsets and all of them give the noise. I double checked all of my connections and everything seems in place.