Seems like you having a boot problem... to fix the problem unplug crossfire and 1 video card and see if it will boot, if its liquid coolant check to see if theres enough coolant in the holding tank and clean the lines, clean the computer case, cpu fan, pws fan, gpu's fan with dust off or air compressor, try reseting the cmos and bios, and try a pws tester or a new one to see if it will boot
i only have one card.
it's not liquid cooled.
i've cleaned the case, fan, etc.
reset the cmos (installed a new one, too)
i don't have access to a tester or a new one.
thanks for the tips, though.