If you look at a normal desktop, there is a phenomenon that the PC time doesn't fit when the cmos battery is on the main board and used up.
Does your laptop have a cmos battery?
Or is there a separate battery for the laptop?
878 2017-07-28 Gentleman
I don't think I'll use it because the laptop battery can be discharged or removed.
I think it's in there.
It's in my laptop, too.
If you use it for about 7 years, the battery can run out.
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