The failure of a CMOS battery can cause catastrophic failure of the motherboard and thus the entire computer system.

Question

Quizplus · Accepted Answer

The CMOS battery powers the BIOS firmware in your computer, which is responsible for booting up the system and storing system settings. If the CMOS battery fails, it may result in issues like loss of date and time settings and possibly BIOS settings resetting to default, but it does not cause catastrophic failure of the motherboard or the entire computer system.

The Failure of a CMOS Battery Can Cause Catastrophic Failure