CMOS BATTERY

That tiny watch battery on your motherboard?
It’s quietly doing a big job… and everyone ignores it.

WHAT IS A CMOS BATTERY?

It’s a small battery on your motherboard that keeps your system time, date, and BIOS settings alive...
even when your PC is off.

WHY IT ACTUALLY MATTERS

1. Keeps your time & date correct
Dead battery = your PC thinks it’s 2010 again.

2. Saves BIOS settings
Remove or replace it, and your motherboard goes back to factory default.

3. Yes, reinserting it can reset the motherboard
IT’s oldest “turn it off and on again” trick.

4. Tiny size, big impact
Looks like a watch battery… behaves like a system guardian.

If your PC forgets time, won’t boot properly, or acts weird…
this little battery might be the culprit.

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