The dual BIOS of the motherboard means that the motherboard is equipped with two BIOS chips, one is the primary BIOS and the other is the standby BIOS. Dual BIOS improves system stability and reliability. If the system fails to start due to a fault in the active BIOS, the standby BIOS automatically takes over to ensure normal system startup.
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When the primary BIOS is infected, damaged, or fails to be updated, the secondary BIOS automatically takes over. In addition, when the active BIOS is updated, the standby BIOS can prevent startup failures caused by the update failure. Therefore, the dual BIOS design is very useful for computer systems that require high reliability and stability.
Dual BIOS, that is, there are two CMOS chips on a motherboard, of course, the two chips are not working at the same time, divided into a master and a deputy. USER is the primary, SAFE is the secondary, and each chip has a BIOS program. Dual BIOS has many benefits, the proportion of BIOS damage in the computer failure is also quite a lot, when the main BIOS is damaged, the motherboard will start the computer from another secondary BIOS, when we want to upgrade the BIOS, if the upgrade fails, a BIOS motherboard can not work properly.
It means that two BIOS chips are designed on the motherboard. When the main BIOS is damaged due to viruses or artificial upgrades, and can not be started, the backup BIOS will automatically take over, and can repair the main BIOS, so as to avoid the system can not be started.