Patching a BIOS module

Recommended by Wim's BIOS...

Looking into M756T's bios modules with AMIBCP, I noticed that there is an option for a CPU/FSB setting of 66/133 in the "client" module, but that's not an available option in the actual setup. I'm pretty much interested on that option, since I use this machine to test RAM sticks and processors, as it runs a PPGA Celeron for the sake of durability (exposed die FCPGA processors quickly wear-out due to the constant cooler swapping).

Is there anything I can modify on this module, so that this option becames selectable on the setup? Seeing what people have done to K7S5A bioses, it should be feasible.

Cheers!
Fowler