More than 8 AMD gpus working on h110 pro btc motherboard with Windows 10 Creators Fall Update 1709 + New amd 17.40 driver.
Changed workload setting from Graphics --> Compute in Global readon settings for each card.
I tried 10x RX 570s . all working fine. 29+ Mhs each.
did you working afterburner?, i cant overclock memory. Back to blockhain driver and max 8 gpu= working.
afterburner not working. overclocked in claymore (-cclock and -mclock). working.