5x ASUS Dual GTX1060's, i3-7300T, Asrock Z270 Pro4 120GBssd running off platinum server psu, total power usuage 400w. It can be done.
You have to undervolt the 1060 quite a lot to achieve that.
60% tdp hashrate is around 22.5-23Mh each on eth and 110hs pasc dual mining.