Okay I do not want to take from the op
but here goes it has worked well running evga 1070 ti hybrids I want it to run eight evga 1070 ti hybrids.
I got my 7th one today. the build is open case.
the board has 7x 6 pin pcies in
the board has 13 6 pin pcies out
it is a great board to run 1070's that have 1 pcie jack
it is a great board to run 1060's that have 1 pcie jack.
op has a good case idea for farms
not homes.
if he sold me a case I would want 8 of these cards in it
https://www.evga.com/products/product.aspx?pn=08G-P4-5670-KR set to 130 watts tdp
https://www.evga.com/products/product.aspx?pn=08G-P4-5170-KR set to 120 watts tdp
case would pull 1000 watts dc for 1070
case would pull 1100 watts dc for 1070 ti
it has 7 jacks in so 1100/7 = 157 watts a wire
if you have a server psu you could feed 7 input jacks
don't use the output jacks use 8 cables to the 8 cards from the same internal psu.
that lowers draw on the 7 jacks in.
I linked blower style cards for a reason
combined with the 6 case fans they would work well to cool the case.
I don't think this would ever be a quiet case but in a warehouse on in my solar array loft it would be good.