Most regular MB only consumes less than 50W I think some of them even lower so that company does not list at all. You can find the info online if you want.
If you want to know which PSU to buy, it will be depend on the GPU. Here is the psu requirements.http://www.realhardtechx.com/index_archivos/Page362.htm
The MB to which I need to know the power consumption is Asus B85-Plus.
It seems amateurish to neglect such an important piece of data regarding electronic
anyway thank you