Hi...as per my experience many motherboards did use a rechargeable battery to save the CMOS from being lost but this is no longer necessary because modern CMOS memory requires so little power to maintain valid data. A very small battery can be used to keep it valid for months to years.
No Warning CMOS battery Voltage
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Hi...as per my experience many motherboards did use a rechargeable battery to save the CMOS from being lost but this is no longer necessary because modern CMOS memory requires so little power to maintain valid data. A very small battery can be used to keep it valid for months to years.
printed circuits assembly