Strange.
Using win10 and 13 amd 570 nitro+.
Grt. Im on W10 1709 5x1060 11x1070
What about environment and temperatures of your cards?
Is it possible that hashrate drops because of cards down clocking for some other reason for example not enough voltage /PL limitation or to high temperatures?
No, not like that. I have tried everything. I have given up on this MB a long time ago yet looking for answers all the time. Now that many ppl suggests it could be miner, it is obvious I havent tried everything.