The first thing you need to ensure is that this power supply for Mining Rig has an efficient watt that will save you over a long period of time in electricity bills. Maybe you can select the 80PLUS® certified Gold or Platinum rated (not for silver or bronze).
The seconds thing is that the power supply you go for has enough PCI-E power connectors available to power all of your Graphics cards in the mining rig.
Motherboard: ASRock H110 Pro BTC+
PSU: FSP2000-A0AGPBI (Total Watts: 2000W)
CPU: Intel® Core™ i5-6600
SAPPHIRE NITRO+ RX470 x 8
ZOTAC GTX1080 x 2
ZOTAC GTX1080Ti x 2