Hello, I am having issues with what I believe are drivers, When I first got my card (RX 6600 XT Gigabyte Gaming Pro OC 8GB) it turned on and worked for a few minutes then it started to artifact.
I managed to get the GPU working again after using DDU and reinstalling drivers but it seems that is a temporary fix, The next day or a few hours of usage the gpu will start artifacting or not even work(usually after turning the PC off)
I believe it’s driver related as GPU Z detects the card but won’t read clock speeds before installation of clean drivers