What Cmos Battery. Its primary purpose is to hold date and time as well as BIOS settings depending on the motherboard in question. Wait a few minutes then replace the CMOS battery.
The CMOS which stands for complementary metal-oxide-semiconductor is a built-in semiconductor chip that stores data. The CMOS battery is responsible for keeping the CMOS and BIOS powered on even when the computer is unplugged. It provides power to the computers motherboard so that very basic settings like the datetime and the boot order are saved to memory even if the computer is unplugged.
A dead CMOS battery prevents the computer from displaying the correct date and time.
It allows you to shut your PC down for an extended period of time and still have the correct time and date in place when you use your PC again. Before sliding the battery out remember the battery orientation so that you can replace it the way it was by default. CMOS complementary metal-oxide-semiconductor is a chip on the motherboard that contains BIOS configuration date time and other information that the computer needs during startup. Because the system clock is controlled by a CMOS battery one of the.
