weird buzzing

From the start i have a problem with a weird buzzing sound coming out of my pc, i can hear it if i get a lot of fps in games, i already tried 3 diffrent gpu's, got a new psu And nothing seems to work. Specs: Asus Prime Z390-P i7-9700k @ 4,5Ghz Asus RTX 2080 Super Rog Strix Oc Corsair HX 1200w...