
Is my GPU the problem?
I'm planning to buy a new GPU, but I just want to make sure the GPU is actually the culprit and not my cheap power supply.
These random black polygon flickers appear and disappear while I'm playing any game, and they start as soon as I launch the game. This isn't an isolated case either—it happens in every game I've tried.
I also checked whether my monitor was the problem by connecting my PC to my TV, but the same issue happened there as well.
Edit: My GPU is already 2 years old and I buy it second hand and it is RX580 2048sp. I know this gpu is used in crypto mining.