A mining motherboard similar to the ASRock BTC was released by a company called BIOSTAR.
There aren't any reviews on newegg yet but it looks exactly like the ASROCK BTC and costs only $70
http://www.newegg.com/Product/Product.aspx?Item=N82E16813138436&cm_re=biostar_tb85-_-13-138-436-_-Product
Comments
https://techpowerup.com/225414/biostar-announces-the-tb150-pro-motherboard-designed-for-professional-mining
Boysie
I expect that due to difficulty increase, POS and the summer approaching me (Australia) - my ETH mining days are numbered. I would love to mine something else but it's so difficult to know what to point my hash power at. Electricity costs us way too much. I am considering a solar panel installation on the house I just bought though... but I guess the 2-2.5KW my rigs burn will take an awful lot of panels!
http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=734#cpusupport