PC makes loud tooting noises when playing games?!?

Hi,

for a few weeks i´ve experienced some really annoying, really loud tooting noises when playing games.

I like playing counterstrike and COD, but this lag makes it near impossible to play.

I dont really know how to describe the problem, so i recoded 3 videos for you so you can understand:

https://www.youtube.com/watch?v=a220z1z1hvs

https://www.youtube.com/watch?v=BOO1dje1yFs

https://www.youtube.com/watch?v=tUFqz2eHAqo

Now i capured these with windows game bar and the sound captured may differ with what i really hear cause its acually much noisier compared to the video capture.

It seems to happen at random, however i´ve tried quite a lot of things like reinstalling the game, restarting my pc, updating framework, updating gpu drivers, restarting router (cause why not?), tring new mouse and keyboard und updating every piece of software imaginable.

This lag only acures when gaming, so it happens in every game i have installed - but at random.

This noise also isnt made fom the physical parts like the fans noise either. So it seems to be a digital thing, sounding more like a signal inteference like you hear when putting a cellphone next to a radio. Also the sound got distorted in clip no. 2 after this lag.

My specs are the following:

i5 9400f @2.9GHZ

RTX 2060

m2 ssd

16GB of ddr4 ram @ 3000mhz

BTW: always online via ethernet.

So i should have enough power to run pretty much every game, but this lag makes me crazy...

Help would be much appreciated!