xCuri0/ReBarUEFI: Resizable BAR for (almost) any UEFI system (github.com)
EDIT: Sorry ReBAR not my strongest field… i just pointed the best thread for it.
Im not aware of that file mods right now, Asus doesn’t have revisions with different bioses.
Your call only but the bios version is valid as long is the same mb model.
I linked the flash guide cause the recommend method for your mb is USB BFB.
It needs a CAP file and, the ROM mod provided is not CAPSULE, you can exchange with an HEX editor on the original ASUS CAP file after 0x800 and rename it to Z77VO.CAP