That kinda negates the purpose of the Mic-In, also I have a pretty good analog Mic :/.Besides that the sound I hear through the speakers/Mic-In can also be faintly heard coming from the card itself.

Florin wrote:The soundcard should be shielded from such things but it`s not  Just look at the onboard sound card, that one is not affected.So which is 'broken'? On the one hand I did not have this issue with older GPU's so that would lead to: GPU = ...

Quite an older thread by now, but I wanted to voice my findings too. (Xonar DX)I started having this weird FPS related buzzing after buying a GTX980 to replace my GTX670 SLI setup.After a lot of testing I found that the problem was gone with my GTX67...