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Answer by bwDraco for Why do PCs still require a CMOS battery?
The CMOS battery, or RTC battery, provides power for the real-time clock so that your computer can continue to keep time when it is unplugged. The name "CMOS battery" is a misnomer on modern computers....
View ArticleAnswer by smokes2345 for Why do PCs still require a CMOS battery?
Think of it like your car battery. When you unplug the battery, your radio loses all of its presets and the clock resets. Orginally, the CMOS battery held a similar function, maintaining the memory...
View ArticleAnswer by nhinkle for Why do PCs still require a CMOS battery?
The CMOS battery is not there to provide power to the computer when it is in operation, it's there to maintain a small amount of power to the CMOS when the computer is powered off and unplugged. The...
View ArticleWhy do PCs still require a CMOS battery?
Why do PCs still require a CMOS battery, given that they're already plugged in? We are providing lots of power to the PC by plugging it into AC mains electricity, so why does it still require a CMOS...
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