A user states they have to reset the date and time on their computer every day. Which of the following hardware needs to be replaced to resolve this issue?

The correct answer is C. CMOS battery. The CMOS battery (typically a CR2032 coin cell on the motherboard) powers the Real-Time Clock (RTC) and stores BIOS/UEFI settings - including date and time - when the PC is turned off and unplugged. When this battery dies or weakens, the system loses its time and BIOS settings…

Hardware and network troubleshooting

Question

Options

AProcessor
BHard drive
CCMOS battery
DMemory

How the community answered

(24 responses)

A
4% (1)
C
92% (22)
D
4% (1)

Explanation

The CMOS battery (typically a CR2032 coin cell on the motherboard) powers the Real-Time Clock (RTC) and stores BIOS/UEFI settings - including date and time - when the PC is turned off and unplugged. When this battery dies or weakens, the system loses its time and BIOS settings every time it loses main power. Replacing the CMOS battery resolves this issue. The processor, hard drive, and memory have no role in maintaining system time when the PC is powered off.

Topics

#CMOS battery#system clock#BIOS#hardware failure

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