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What does the button battery do

Last response: in Motherboards
January 2, 2013 9:25:41 AM

will it keep my desktop from turning on

More about : button battery

a c 471 V Motherboard
January 2, 2013 10:11:26 AM

It powers the chip that stores important system data called the CMOS settings. Without it when you start up the computer you'll get errors such as "Invalid system settings--Run Setup" or "CMOS checksum error".