Question AMD system artifacting and freezing

[koko667]

i just got this new amd system with a r5 7600 and rx 6800 https://pcpartpicker.com/list/pD9yn6 and i played apex legends then after exit the game i opened another game and it started artifacting not long ago in the main menu and then it somehow fixed itself after a few force shutdown with power button and turn on again but then i played that other game for a 40 minutes then exitted the game and then not long after that it started artifacting out of nowhere again with only discord and chrome open. please help what should i do

edit: ive found out that when i change my refresh rate to a higher one artifacting will happen and also after CLOSING a long game session(ex:2 hours of overwatch 2) it will usually starts artifacting after 1-3 minutes and freeze the system. I have tried reseating it and ive noticed that the natural position of the gpu is not alligned with the spot where you're supposed to screw the gpu to the case and forcing to screw it in will result in the gpu's right side to be ever so slightly pulled away from the motherboard so i tried just mounting it with no screws screwed in while laying it flat and it stopped the no signals i was getting but the artifacts still happens the same way, and ive tried running the pc without the gpu and it was running conpletely fine. so its either my mobo pcie slot or my gpu pcie slot or the gpu itself is faulty or all of them

 

[rgd1101]

full system spec? include brand and model of the psu

 

[koko667]

full system spec? include brand and model of the psu

here are the specs psu is cooler master https://pcpartpicker.com/list/pD9yn6