CMOS (complementary metal-oxide-semiconductor) battery is a small, coin-shaped battery that gives energy to the pc’s CMOS chip. The CMOS chip shops the pc’s BIOS (primary enter/output system) settings, such because the time, date, and {hardware} configuration. If the CMOS battery dies, the BIOS settings will likely be misplaced and the pc could not have the ability to boot up.
Changing the CMOS battery is a comparatively easy course of. Nonetheless, you will need to take precautions to keep away from damaging the pc. Earlier than you start, you need to energy down the pc and unplug it from the facility outlet. You must also floor your self by touching a metallic object, equivalent to a doorknob or water faucet.
