I also have the same issue "Stuck in D3".
Unraid stable 6.7.2
Asus ROG STRIX B350-F Gaming motherboard, bios version 5008 (upgraded just before installing unraid, maybe that was a bad thing).
Asus GTX 1060 6GB Dual OC
Ryzen 1700 cpu (first gen)
Also tried to put an ASUS GTX 750 TI in the computer as well, with the exact same problem.
(both gpus installed at the same time)
EDIT2: Also tried to downgrade to the BIOS before 5008 with EzFlash, and the downgrade worked for the bios before but not with earlier bioses. Same thing here with "Stuck in D3".
Upgraded to 5008 again.