Converted my new stock rig Gigabyte RX470s 6xGPU on TB85 to the new 12xGPU Biostar TB250-BTC PRO
Got it to work with 12 GPUs on smOS.
Celeron G3930, 8GB RAM, 2400watts Delta server PSU Kit
Latest smOS image supports 15 x GPUs I think, so this will cover this mobo and also the ASRock H110 Pro BTC (13 x PCI slots)
Bootup with PCI-16x slot
Goto BIOS
Disable Sound
Power ON after power loss
On board graphics - Enabled, select IGFX
Mining Mode - Above 6G
Save reboot
Plug your monitor to on board graphics which is DVI (HDMI or VGA would have been better, I had to find a DVI-D adapter...)
So far so good overnight very stable.
Next few days, ROM modding time for the RX-470s
ETH: 07/12/17-10:59:18 - New job from eth-sg.dwarfpool.com:8008
ETH - Total Speed: 239.126 Mh/s, Total Shares: 380, Rejected: 0, Time: 00:55
ETH: GPU0 19.934 Mh/s, GPU1 19.906 Mh/s, GPU2 19.918 Mh/s, GPU3 19.925 Mh/s, GPU4 19.940 Mh/s, GPU5 19.930 Mh/s, GPU6 19.934 Mh/
s, GPU7 19.933 Mh/s, GPU8 19.926 Mh/s, GPU9 19.924 Mh/s, GPU10 19.921 Mh/s, GPU11 19.934 Mh/s
GPU0 t=67C fan=80%, GPU1 t=67C fan=80%, GPU2 t=62C fan=80%, GPU3 t=59C fan=80%, GPU4 t=61C fan=80%, GPU5 t=67C fan=80%, GPU6 t=6
9C fan=80%, GPU7 t=63C fan=80%, GPU8 t=59C fan=80%, GPU9 t=64C fan=80%, GPU10 t=61C fan=80%, GPU11 t=62C fan=80%
ETH: 07/12/17-10:59:39 - New job from eth-sg.dwarfpool.com:8008
ETH - Total Speed: 239.139 Mh/s, Total Shares: 380, Rejected: 0, Time: 00:55
ETH: GPU0 19.925 Mh/s, GPU1 19.921 Mh/s, GPU2 19.918 Mh/s, GPU3 19.937 Mh/s, GPU4 19.942 Mh/s, GPU5 19.928 Mh/s, GPU6 19.921 Mh/
s, GPU7 19.941 Mh/s, GPU8 19.923 Mh/s, GPU9 19.946 Mh/s, GPU10 19.917 Mh/s, GPU11 19.918 Mh/s
GPU0 t=67C fan=80%, GPU1 t=67C fan=80%, GPU2 t=62C fan=80%, GPU3 t=59C fan=80%, GPU4 t=62C fan=80%, GPU5 t=67C fan=80%, GPU6 t=6
9C fan=80%, GPU7 t=63C fan=80%, GPU8 t=60C fan=80%, GPU9 t=64C fan=80%, GPU10 t=61C fan=80%, GPU11 t=62C fan=80%