Guide to mod and flash here:
EDIT: Months???.. damm, this is a very popular subject around the web. Its an easy mod, but do need reading to understand it.
You can share the mod file for verification, before the flash.
EDIT: Try it, nothing to be scared of, the guide is well elaborated. MMtool as primary method, UEFI tool as secondary and/or as pad-file checker, but all is to read.
These Gigabyte 8 series bioses usually must use the NvmExpressDxe_Small.ffs module.