Hi,

I started my mining adventure with GA-990FXA-D3 few weeks ago from beginning I'm using SMOS (thank you tytanick!) and i tried to force it to run with 6 cards but with no success Week ago i bought another GA-990FXA-D3 but with second board i was unable to start more than 4 cards... after comparing this two setups I find out that older board has F8 BIOS and this newer is F9a so i flashed F8. After restart still only 4 cards was working but i saw lots of errors that didn't appear before after some time i figure out that key option that allow start with 5 cards is enabling "Spread Spectrum".

So with 6 cards i have exactly same issue on 2 rigs and it will be great if i will be able to run 2 cards that right now are mining only dust on the shelf. I also have PCIe SSD with windows that i used to re-flash cards and widows started up with 5 cards and SSD (all PCIe slots occupied) but when i tried boot SMOS i had same issue like with 6 cards.

PS. I`m using gigabyte rx480 :
ETH: GPU0 28.738 Mh/s, GPU1 28.728 Mh/s, GPU2 28.753 Mh/s, GPU3 28.747 Mh/s, GPU4 28.747 Mh/s
GPU0 t=73C fan=100%, GPU1 t=69C fan=100%, GPU2 t=74C fan=100%, GPU3 t=74C fan=100%, GPU4 t=74C fan=100%

ETH: GPU0 28.752 Mh/s, GPU1 28.735 Mh/s, GPU2 20.708 Mh/s, GPU3 29.121 Mh/s, GPU4 28.746 Mh/s
GPU0 t=71C fan=100%, GPU1 t=75C fan=100%, GPU2 t=67C fan=81%, GPU3 t=70C fan=81%, GPU4 t=71C fan=88%