Can you borrow another card to test with? Really, the easiest way is to get it serviced, because it's under warranty.
There's nothing wrong with the board; I already exchanged it once, I'm not doing it again. I got completely fed up with the 398734 issues I was having so I tried another in-place upgrade. That really just made matters worse. So now I'm a not-proud member of the Windows 10 club. Once I upgraded the OS, I authored the bluray perfectly. I have no reason to believe the board or graphics card have anything to do with the underlying issue. Sounds like there's a reason they don't want you to run Windows 7 on a Ryzen part...