Hi all,
I'm having issues with my H110 Pro BTC+. It refuses to boot (don't even get BIOS) with more than 9 GPUs installed, on the 10th i get the issue, 9 works fine. I've followed the miners guide and ensured both molex plugs and the Sata connector (so 3 in total) are connected on the motherboard and are also using 3 separate cables back to the master PSU. Can anyone help? OS doesnt matter since it doesnt get that far.
Setup:
H110 pro BTC+
Intel G3930 CPU
4GB Ram
500GB Sata HDD
ATI Rx Vega 64 GPUs
3 x Corsair HX 1200 PSUs (1200 Watts each).
Is there perhaps some sort of undocumented issue with the board not supporting these cards? They require two 8pin PCI-E power connectors each, my power draw should be fine though, I have one PSU dedicated to the mother board and the other two PSUs for the GFX cards. Apart from that anyone got any bright ideas?

This board requires a UEFI boot and tends to revert to CSM mode when booted with less than 10 GPUs powered on. Heck it randomly loses the setting every few weeks for me when one card crashes. Just have to go into bios with less than 10 GPUs powered (turn off PSU not used for motherboard), go to boot menu and disable CSM. Save and reboot. Power off as soon as you see the bios menu. Power on all cards and boot machine. Works every time.