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The only battery in a desktop computer is the one used to keep the clock running

when the machine is powered down, provide some juice for the BIOS to start, and

keep a few neurons of CMOS memory alive so that the machine knows what to do

when the power-on button is pressed.

It's nothing but a small silver 'button', like a wrist-watch battery, typically on the

motherboard.

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12y ago

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