Upgraded to an RX 580 8gb from an RX 470 4 gb. I've had no issues with the 480, can play most games on high settings with a good frame rate, no issues. After installing the 580 I started getting a flashing black screen while gaming. This would start around after 5 to 10 minutes of gaming. The screen would go black for a few seconds then come back. Sometimes it would flash a few times each instance. Reinstalled the rx 480 and everything is back to normal. Any ideas?