gigabyte ma 770t ud3p, i know this board is capable.
i enter the bios. enter M.I.T. and go into ACC. select ec firmware thing and change to hybrid then change the other setting below to all cores. then it wont boot so obviously its failed...
i was unaware that you can unlock just the one extra core, im assuming instead of selecting all cores you do it per core until it boots???
also in that link you posted it mentioned upping the v core and nb. ill have to play some more...