This is a real head-scratcher.
Original system: Ryzen 3 2200G (onboard video disabled), GTX 1060 6G, 8 GB HyperX Fury 2666, Corsair CX450, Gigabyte GA-AB350-DS3H.
Purchased a Ryzen 5 2600 and dropped it in. System booted OK, and ran great. Next time I tried to reboot it however, it would not...