As general rule, never.
Perform the mod according the NVMe guide in the forum.
EDIT: But this thread and the work made here, was about NVMe mod for the motherboard, not unlocking/unhide bios options or Bi-Furcation, im sorry but this i cannot do.
Some tasks/mods asked by users, takes too much time and responsibility, that’s why the forum and the users, shares the many guides around.