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Introdução

The CMOS battery maintains the time, date, hard disk and other configuration settings in the CMOS memory. When your CMOS battery dies, your system settings will be lost.

O que você precisa

Passo 1 How to unplug and discharge before repair

Dell Optiplex GX620 CMOS Battery Replacement, How to unplug and discharge before repair: passo 1, imagem 1 %32

Dell Optiplex GX620 CMOS Battery Replacement, How to unplug and discharge before repair: passo 1, imagem 2 %32

Power down your PC and remove the power cord from the back.

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Passo 2

Press and hold the power button for about 10 seconds, then release.
This helps drain any remaining power stored in the capacitors, so that you can safely work on the internal components.

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Passo 3 Dell Optiplex GX620 Side Panel Disassembly

Dell Optiplex GX620 CMOS Battery Replacement, Dell Optiplex GX620 Side Panel Disassembly: passo 3, imagem 1 %32

With the computer standing upright, firmly pull on the tab at the back of the computer.
When the side panel pops free, gently pull the panel away from the computer.
If you have trouble freeing the side panel from the case, you may need to pull the tab a bit harder.

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Passo 4 Removing the CMOS Battery

Dell Optiplex GX620 CMOS Battery Replacement, Removing the CMOS Battery: passo 4, imagem 1 %32

Insert a tool beside the battery and gently pry the battery out.
Using a screwdriver to pry open anything can harm your device. Instead, use a spudger or a plastic opening tool.

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