recently everytime i open up a game and play for a few minutes the screen turns black or white and disconnects from my monitor. this also happens when i open up other things like google. i also noticed my pc was a little slower and had lower fps in games. im not sure wether its my ram or power supply. my specs are ryzen 7 2700, asrock rx 580, 16 gb ddr4 2400, and asrock b450m/ac.