CPU/Mobo [Solved] Booting the Gigabyte H410M H in legacy mode (BIOS + MBR partitioned HDD).

PoBoy

Skilled
I recently bought a G6400 and Gigabyte H410M H for a relative.
He would like to retain the HDD which is partitioned with the MBR scheme.
(Also it used grub4dos as boot loader, that requires a MBR type disk.)

However the Gigabyte H410M H BIOS just won't boot in legacy mode. I have enabled CSM.
And tried Storage Boot Option Control set to legacy.
The previous mobo had a "Boot mode" setting in BIOS, set to "legacy only". No such setting can be found in the H410M H.

Does that mean only EFI booting is permitted with this mobo?
Has anyone used legacy booting with a modern Gigabyte mobo ?

EDIT:
OK, I'm feeling a bit silly.
I installed the latest BIOS, F3, and legacy booting is working OK. G4D installed to MBR works. *clap clap*
The changelog for F3 only said "Improve UHD BD (4K BD) support", so I did not consider it earlier.

Hope this will help others who have this mobo.
 
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