This is the combination recommended to me by the supplier in China. They build complete rigs for sale with or without GPUs depending on the customer's preference.

They say that it is their most popular package and that they have supplied customers the same combination all over the world without any complaints.

I tried to get a similar setup from several other suppliers to try and find the best price, but everyone is sold out of the 12 GPU riserless B250 Mobo at the moment.

I presume that it must work then if they are supplying other people the same setup.

I have checked the compatibility with Intel and they say that some Mobo B250 chipsets are compatible with the G4930, so probably this Mobo is one of them.

But thanks for the heads up anyway

Thanks for your input.

Crashes are common from time to time. I use Ethos and it has worked well for me for years and been very stable.

I have had round 100 rigs with 6 GPUs in each up and running since 2018, but find that they are crashing more often then they used to, and I am replacing the risers and their cables more frequently now. I suspect that the heat, dust and time is wearing them out, and I am more busy in my job and don''t have all day as I used to, to keep pulling rigs and troubleshoot them all the time.

I thought some new hardware, and replacing the risers with something hardwired into the board may be better in the long term, also 12 GPUs per unit rather than 6 saves a bit on space in my wind tunnel and potentially a bit of power too.

But point gladly taken, thanks.

Just wanted to know if anyone had issues with this board with either AMD, NVIDIA or Ethos

Thanks again 

Anyone have any experience whith this mobo ? Any tips or advice very welcome.

I think it is one of the newer series of this line and has 12 full size GPU slots, so no risers ... phew !!
I want to use it with a G4930 Celeron 3.2 Ghz CPU LGA1151, 8GB ram and a 64GB SSD for mining Eth with Ethos.
ATX PSU 2400W

total cost excluding GPUS is 440 USD, or 555 with a metal casing.   

I am thinking of getting 20 units of the above without the case, as it adds weight and volume to shipping. I can make some wooden rigs like I have previously and they work just fine.

I have lots of 1060, 1070 and RX580 cards, and as I said before, have been mining wth wooden, home made rigs using MSI boards and risers since 2018, but I keep getting crashes of increasing frequency and the risers and their quality is driving me crazy with a lot of fiddle factor... so I have decided to invest a bit of my mining eanings into a, hopefully, simpler setup with full length PCIE slots and newer hardware. I though about newer GPUS but the cost is a lot, and my old ones seem fine for now. I dont want to invest that much.

I am also hoping to mine on solar power a bit to reduce my energy costs during the day, and the environmental footprint, and use the waste heat to power a commercial dessicator to dry fruit and veg.

any thoughts welcome.