Same problem with the MSI Z170-A PRO.
Only 4 cards are working. 2 cards code 12.
Has anyone found a solution to this?
had the exact same mobo, tried *almost* everything, gave up and returned it
h81 pro btc working smoothly oob
I found that the H61 BTC pro or the H81 BTC pro are the best mother board out there. They are very reliable.