OK, here is your board at the manufacturer's site;
GIGABYTE GA-MA78GM-S2H (Rev. 1.0) | Emaplaadid - BIOS
These are the current BIOS programs; I would advise against using a BETA here, Indeed, unless you actually need a function which is in the "NEW" BIOS I would advise you not to update at all, Your BIOS is recent, and your machine obviously works.
Why do you want to update?