I'm trying to get this gm working too.
It's a battle, the docs are not really usable.
one question you should ask yourself -- does it have to be this part from this vendor? Is there a compelling reason to work on this instead of an amd64 board, given that AMD is very helpful w.r.t. LinuxBIOS?
Anyway, if you find you need this chip, let me know, and we can try to work it out.
ron