HardwareQuestion 9 of 100
A motherboard's CMOS settings and clock reset every time the PC is unplugged. What is the most likely cause?
a.Depleted CMOS battery
b.Failed CPU
c.Bad RAM
d.Corrupt operating system
Explanation
The coin-cell CMOS battery (typically a CR2032) maintains BIOS/UEFI settings and the real-time clock when power is removed. When it dies, settings and the clock reset on every power loss.
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