Hello,
I have this motherboard and is working ok with 6 cards, but I have extra 5 cards and the prices of the motherboards that support 12/13 gpus are pretty high right now, so I bought an PCIE extension. The issue is that when I plug the risers in the multiplier, the cards are not detected, but if I plug an usb stick, it works fine. Is because of the motherboard?
MB: https://rog.asus.com/uk/motherboards/rog-strix/rog-strix-b250f-gaming-model/
PCIE Multiplier: https://www.amazon.co.uk/gp/product/B0855QY46F
Thanks