- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw List
- Major components of your system
- Side cover
- Front bezel
- Fan duct
- Hard-drive assembly
- 3.5 in. hard-drive assembly
- Solid-state drive
- Memory module
- SD card reader (optional)
- Processor fan and heat-sink assembly
- Processor
- Expansion card
- Graphical processing unit
- Coin-cell battery
- WLAN card
- Slim optical-drive
- Speaker
- Power button
- Power-supply unit
- Intrusion switch
- Optional I/O modules (Type C/ HDMI/VGA/DP/Serial)
- System board
- Software
- System setup
- Troubleshooting
- Getting help and contacting Dell
OptiPlex 5090 Tower Service Manual
Removing the coin-cell battery
Prerequisites
- Follow the procedure in before working inside your computer.
- Remove the side cover.
- Remove the 3.5-inch hard-disk drive assembly.
About this task
The following images indicate the location of the coin-cell battery and provide a visual representation of the removal procedure.
Steps
- Using a plastic scribe, gently pry the coin-cell battery out of the slot on the system board.
- Remove the coin-cell battery away from the computer.
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