i wanna ask about the dual bios , why it has 2 ?
what's the purpose of having 2 bios ?
like the picture shows, it seems to be a backup , but how does it work ? and why do we need a backup for bios ?
Dual BIOS can help in several ways. If a BIOS update is interrupted or corrupted somehow like by power loss it will literally kill your motherboard. Also sometimes when overclocking a certain version of BIOS may be more stable than others.
I have actually had a motherboard that was not stable with a newer BIOS version when overclocking and would start a reboot loop. Gigabyte's dual BIOS allwed me to revert to the older more stable version. In my opinion it's a necessary feature.