amd radeon rx580 8gb

Hi! I see a million posts about similar issues, but none seem to make a concrete call as to cause of this problem. New build, Ryzen 5 3600 on MSI b450 tomahawk max mobo, 16 GB RAM, Sapphire Radeon RX580 8GB Nitro+, SSD. No OC. Pulled SSD from another system and didn't reload Windows 10...

Hi there. Recently I made a new gaming pc myself with a new gigabyte btc b250 fintech motherboard. Since mining motherboards become obsolete, these are very cheap and this one is boasted as good for gaming as well. I did put a new intel i7 7700k inside, together with 32MB Ram and an AMD Radeon...