@Claymore, do you know about stability problems at mining configs with more than 12 AMD GPUs? I have one based on Astock pro btc+ and 13 sapphire rx 580 nitro+. It can mine for hours without any problems, and after it can restart/freeze/report OpenCL errors (cant create dag file at startup, hangs up and so on).
I saw, that AMD writes about problems in their AMD Adrenalin 18.3.4, but wtf??? What do you think?