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Dell OptiPlex 3090 Small Form Factor - Coin-Cell Battery; Removing the Coin-Cell Battery

Dell OptiPlex 3090 Small Form Factor
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Steps
1. Place the heat-sink and fan assembly onto the system board.
2. Tighten the captive screws that secure the heat-sink and fan assembly to the system board.
3. Connect the fan cable to the connector on the system board.
Next steps
1. Install the hard-drive and optical-drive bracket.
2. Install the 3.5/2.5-inch hard-drive assembly.
3. Install the front bezel.
4. Install the side cover.
5. Follow the procedure in After working inside your computer.
Coin-cell battery
Removing the coin-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. Remove the front bezel.
NOTE:
Removing the coin-cell battery resets the BIOS setup program settings to default. It is recommended that you note
the BIOS setup program settings before removing the coin-cell battery.
About this task
The following images indicate the location of the coin-cell battery and provide a visual representation of the removal procedure.
38
Removing and installing components

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