Keeps shutting down without any user input.

Computer is refusing to boot the Operating System.

If you go a long time without using your notebook or computer, the battery is constantly in use preserving all that important startup information. ” If you use your computer more often the battery will last longer. “The average lifespan of CMOS batteries are 2 to 10 years according to. What causes a dead CMOS battery ?Ĭorruption of CMOS is unfortunately very common. All this information is preserved with a near quarter-sized lithium battery located directly on the motherboard of the computer. This information includes the system time, date, and system hardware settings for your computer to startup and load correctly. The CMOS acts as a battery powered semiconductor chip inside your computer that stores important information. The motherboard battery or CMOS (Complementary Metal-Oxide Semiconductor) works as a RTC (Real-Time-Clock) on your motherboard.

Can a CMOS battery cause a black screen?.

Will removing the motherboard battery reset BIOS?.Can a motherboard run without a battery?.Is the CMOS battery the same battery found in Automotive Key Fobs?.How do I get the CMOS out of the motherboard without damaging it?.

Saves battery mode load off your