In which scenario would you need to update the BIOS?

Updating the BIOS is often necessary when changing the CPU, particularly when the new processor is not supported by the existing BIOS version. The BIOS (Basic Input/Output System) is the firmware that initializes the hardware components and loads the operating system when the computer boots. New CPUs may have different architecture, features, or support, which the previous BIOS might not recognize.

Manufacturers frequently release BIOS updates to expand compatibility with newer hardware, enhance performance, fix bugs, or improve system stability. Thus, if you are installing a new CPU that was released after the motherboard's current BIOS version, updating the BIOS ensures that the system can identify and properly utilize the new processor.

In contrast, adding RAM or installing a new video card typically does not require a BIOS update, as these components are usually supported by existing BIOS versions. Fixing a corrupted file is more related to software issues and not dependent on the BIOS.