CMOSbatteriåterställning

CMOS batteriåte refers to the small, coin-shaped battery found on a computer's motherboard that powers the CMOS (Complementary Metal-Oxide-Semiconductor) chip. This chip stores essential system settings, including the computer's date and time, boot order, and hardware configuration.

When a computer is turned off, the CMOS battery provides the necessary power to maintain these settings. Without a functioning CMOS battery, these settings would be lost each time the computer is powered down, requiring the user to reconfigure them upon startup. This would result in the system date and time resetting to a default value, and potentially other hardware or boot settings being lost as well.

CMOS batteries are typically CR2032 lithium batteries, although other sizes may be used in some motherboards. They have a long lifespan, often lasting for several years. Symptoms of a failing CMOS battery include the computer's clock losing time or resetting, error messages related to CMOS settings during boot-up, or the computer failing to boot altogether. Replacing a CMOS battery is a relatively simple procedure that involves locating the battery on the motherboard, carefully removing the old one, and inserting a new one.