I bought an AMD RX 480 8GB and installed every driver that was needed. I checked if the card is real and every program (for example gpu z) says that its a real rx 480. But everytime I want to play a game, it takes a few seconds and then everything shuts down. The coolers start spinning very fast and the screen is only black. The only thing i can do now is to restart my PC. My power adapter has 600 Watts, so I dont think this is the reason for everything. Can someone solve my problem? Any hints?? I need help!