it looks like almost everyone with this board is running a combination of amd and nvidia cards? any reason not to do all amd or all nvidia? is anyone using simplemining? are all 3 molex/ATX connectors necessary? i have a server psu with a breakout board and i'm still playing with various mobo/cpu/card combinations trying to find the ideal one. having a lot of issues with the asrock h81 pro btc 2.0 and simplemining :/
I'm running on 2 13 gpu nvidia rigs using this mobo without any problems....only problem i have is the heat

I find it easier to not mix amd and nvidia to be honest with you..
i have some experience with about other motherboards but i always prefer to keep the gpus the same brand/style. evga 1060, pny 1080ti, msi 580. it makes it not only easier for bookkeeping for troubleshooting as well. i was just wondering why so many people were mixing gpus with this thing? i just setup this board about 10 minutes ago with 6 pny 1060 6gb, i'm about to go try to add 6 more.
have you tried getting more than 13 gpus on this thing?
edit: got 12 running fine, gonna try to do 16 on monday
For the millionth and one time in this thread...13 GPUs will work just fine but #14 - #19 has to be a P series card. IE: P106-100.
And there is no need to keep with the same brand or model series. The board doesnt care when it comes to using #1 - #13 cards. Troubleshooting is the same no matter what brand or series card used.