If you type "BIOS 2" into a search engine, you will find two distinct, non-exclusive answers. Understanding which one you need requires a brief history lesson.
To appreciate , you must understand the pain points of its predecessor. Legacy BIOS was designed for the IBM PC AT in 1984. It worked for decades because CPUs were slow and drives were small. However, by 2010, the walls were closing in. bios 2
uses parallel initialization . It fires up all cores of your CPU, detects all devices simultaneously, and hands off to the OS in milliseconds. On an NVMe SSD, a UEFI system can reach the Windows desktop in under 5 seconds from cold boot. Legacy BIOS cannot do this. If you type "BIOS 2" into a search
In this context, is the backup chip. If you corrupt BIOS 1 during a failed overclock or a power outage during a firmware update, a physical switch or jumper lets you boot from BIOS 2 to recover the system. This is a hardware safety net, not a generational software change. Legacy BIOS was designed for the IBM PC AT in 1984