Artifacts and texture distortion, where is the problem buried?

Question

Video cards

Good day everyone. I ran into such a problem after assembling a new PC, at first artifacts appeared in games and the computer freezes further, after replacing the video card, one problem remains, when the game crashes completely green screen, freezes and creaks the sound, after the computer just goes out, there is no automatic overload. At the moment, the computer has an Amd ryzen 7 2700, MSI B450 pro, before that there was an MSI RTX 2060, but I put the RX 480 into the service for a while, RAM 2 bars 1 corsair by 8 and without a known bar for 4 GB. Chiftek PSU 650 watts.