- Notes, cautions, and warnings
- Safety instructions
- Major components of your system
- Removing and installing components
- Recommended tools
- Screw list
- Stand
- Cable cover—optional
- Back cover
- Hard drive
- Memory module
- System-board shield
- Solid-state drive
- System fan
- Coin-cell battery
- Wireless card
- Camera assembly
- Bottom cover
- Power-supply unit
- Power-supply fan
- Heat sink
- Processor
- Rear-I/O bracket
- System board
- Speakers
- Power-button board
- Microphones
- Side I/O-board
- Audio board
- Antennas
- Display panel
- Middle frame
- Software
- System setup
- Troubleshooting
- Getting help and contacting Dell
OptiPlex 7780 All-In-One Service Manual
Installing the coin-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image provides a visual representation of the coin-cell battery installation procedure.
Steps
With the positive-side facing up, insert the coin-cell battery into the battery holder on the system board and gently press the battery until it snaps into place.
Next steps
- Install the system-board shield.
- Install the back cover.
- Install the cable cover (optional).
- Install the stand.
- Follow the procedure in After working inside your computer.
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