I've built a few rigs using other ASRocks motherboards and they've all picked up six GPUs without a problem.
I've picked up Gigabyte GA-Z270P-D3 (Revision 1.0) https://amazon.co.uk/gp/product/B01NCS9QS5/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
and I can't for the life of me get six GPUs working.
I'm using AMDs mining driver and I've flashed the BIOS to F7 (the latest for this particular board).
Any combination of five GPUs works, as soon as six are connected it fails to boot.
Rig powers up and presents a black screen as soon as the 6th card is connected.
Tested 18 risers & all PCIe slots, they all work individually.
I'm completely stumped and can't for the life of me find an answer already online.
Assistance appreciated and rewarded for a fix, either paypal or eth transfer. (Unsure if I'm allowed to do this, apologies mods if not).
Thanks in advance.