I am planning some new builds.

I am thinking about using the Asus B250 mobo since the removal of GPU limit with the update for Win 10.

I have a question though and i hope that some prople here are using this mobo.

I am going to use server psu:s only in this build. The Asus B250 requires 3x24 pin connectors. Can i use three of these ?
https://www.parallelminer.com/product/180watt-max-24pin-atx-power-module-included-sata-molex-cpu-power-connectors-ditch-your-atx-power-supply-entirely/

I am using powered USB risers but will 3x180w max be enough for the motherboards ?
I guess that most power for the gpu:s will be pulled from the power connectors and risers anyway ?