I'm in process of building a mega rig. (Don't forget to change bios into "mining mode" or it'll only run one) so here's the problem. If I put it in 6x mining mode it boot and run 6 out 10 of my amd cards. When I change the mining mode to "over 6x (uefi only)" it won't boot at all just a blank black screen
. Windows 10 is booting in uefi. I even tried ubuntu 16.04 and nothing will load past the motherboard boot screen.