User Manual
Table Of Contents
- OptiPlex 5400 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of OptiPlex 5400 All-in-One
- Stand
- Cable cover—optional
- Back cover
- Hard drive
- Memory modules
- System-board shield
- Solid-state drive
- Removing the M.2 2230 solid-state drive-slot 1
- Installing the M.2 2230 solid-state drive-slot 1
- Removing the M.2 2280 solid-state drive-slot 1
- Installing the M.2 2280 solid-state drive-slot 1
- Removing the M.2 2230 solid-state drive-slot 2
- Installing the M.2 2230 solid-state drive-slot 2
- Removing the M.2 2280 solid-state drive-slot 2
- Installing the M.2 2280 solid-state drive-slot 2
- 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
- Antenna modules
- Display panel
- Middle frame
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell
Installing the rear-I/O bracket
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the rear-I/O bracket and provides a visual representation of the installation
procedure.
Steps
1. Align the screw holes on the rear-I/O bracket with the screw holes on the display-assembly base.
2. Replace the three screws (M3x5) to secure the rear-I/O bracket to the display-assembly base.
3. Route the power-supply cables through the routing guide on the rear-I/O bracket.
4. Align the screw hole on the power-supply socket with the screw hole on the rear-I/O bracket, and place it in the slot on the
rear-I/O bracket.
5. Replace the screw (M3x5) to secure the power-supply socket to the rear-I/O bracket.
Next steps
1. Install the bottom cover.
2. Install the system-board shield.
3. Install the back cover.
4. Install the cable cover (optional).
5. Install the stand.
6. Follow the procedure in After working inside your computer.
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Removing and installing components