[stomachmonkey]

Fans are typically run straight off the mother board so they can be triggered by component temps.

The three plugs on the bottom of the small board I would assume are plugged into the MB to draw power but I don't see them in the front pic.

I would ignore the small board and go direct to MB first and see what you get.

What did the small board come with, part of the MB set, the case, the fans?

Those breakouts are almost always for a 3rd party way to control fans and lights so there may be a utility that needs to be installed.