I have 2 sapphire rx470 4gb nitro plus.One of them is on the board and the other one is connected to my system with a 16x16 riser. Both have been flashed for mining ethereum.
My os is windows 10 and GPU driver is Radeon 16.9.2 .
The problem is that when I turn off or restart my computer
Windows fails to detect one of my cards and it takes me a long time to make it work again ( even I have not learned how it works again) sometimes I have to install windows again which is really difficult.
Please help me
Thanks
Motherboard : gigabyte z170x ud3
CPU: g4400
Have you figured out which card is failing ? I've read that this problem happens to some miners when not all cards are connected with raisers. Try disconnecting card with raiser completely and see if everything will work fine then