Hey guys hope you can help. I cant seem to get 6 GPU's to run on this mother board. I am using simplemining booted from a usb. I can run up to 5 cards with  no issues at all. as soon as I add the 6th card, the system startsup directly into the Gigabyte screen. I have tried various setting but to no avail. If I enable "mining" in the bios, the system boots to screen with "Reboot and select proper boot device or insert media in selected boot device. I have changed around he GPU's and they all work fine. I am out of options anyone?