COMPUTER HARDWARE
MOTHERBOARDS AND EXPANSION CARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to keep the computer in standby mode
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to keep the system clock running
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to power the North/South bridge
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As emergency backup power
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Detailed explanation-1: -BIOS needs to remain operational even when your computer isn’t plugged into a power source. That’s where the battery comes in. When your computer gets unplugged, BIOS relies on the CMOS battery for power.
Detailed explanation-2: -Motherboards use batteries to power the BIOS settings even after unplugging the computer. The BIOS tells the computer what to do during boot-up, including which drive to use. It also retains the basic settings for the computer, such as the date and time, which requires constant power to keep running.
Detailed explanation-3: -A battery that maintains the time, date, hard disk and other configuration settings in the CMOS memory. CMOS batteries are small and are attached directly to the motherboard.
Detailed explanation-4: -The memory battery (aka motherboard, CMOS, real-time clock (RTC), clock battery) is generally a CR2032 lithium coin cell. This cell battery has an estimated life of 3 years when power supply unit (PSU) is unplugged or when the PSU power switch is turned off.
Detailed explanation-5: -Your motherboard and computer will be able to boot just fine even without a CMOS battery present. The only issue is all your BIOS settings will be reset and the time and date will be inaccurate. You will also be unable to save BIOS settings.