It would depend a lot on which Xeon what the power consumption is. Quad core up to like 28 core if memory serves.
It would be whatever parts they could find to populate their board design, that is for sure. Doesn't mean they are poor quality necessarily. And depending on which VRM layout they decided to use, it might actually be decent. LGA2011 was a high power socket, so if they wanted it to be capable with more then the lower end chips, they would have to put in a little effort.