DualBIOS is dual BIOS. It has nothing to do with UEFI, this technology is already a very old technology. The function of dual BIOS is that when one BIOS firmware is damaged (such as BIOS update failure or overclocking failure leading to BIOS damage), the other BIOS will automatically take over and automatically re-flash the damaged BIOS firmware to restore it to its original factory state. This can prevent the motherboard from being completely paralyzed due to BIOS damage.