Owners Manual
Table Of Contents
- Precision 5720 All-in-One Owner’s Manual
- Working on your computer
- Removing and installing components
- USB dongle-bay cover
- Back cover
- Memory module
- Hard drive
- System board shield
- M.2 PCIe SSD
- Memory fan
- Heat sink
- Processor
- Coin cell battery
- WLAN card
- Stand
- System fan
- Power supply unit
- Inner frame
- Built-in self test button
- Microphone
- I/O panel
- USB-dongle port
- Diagnostic light and button board
- Drive cage
- Converter board
- Speaker
- Power button board
- Media card reader
- Camera
- System board
- Display assembly
- Middle frame
- Speaker bezel
- Display panel
- Technology and components
- System setup
- Software
- Troubleshooting
- Technical specifications
- System specifications
- Memory specifications
- Video specifications
- Audio specifications
- Communication specifications
- Connectors
- Display specifications
- Storage specifications
- Port and connector specifications
- Power specifications
- Camera specifications
- Stand specifications
- Physical specifications
- Environmental specifications
- Contacting Dell

Installing power supply unit
1 Align the screw holes on the power-supply unit with the screw holes on the middle cover.
2 Replace the ve screws (M3X4) that secure the power-supply unit to the middle cover.
3 Route the cables through the guide and close the clip to secure the cables.
4 Connect the power-supply indicator cable and power-supply fan cable to their respective connectors.
5 Route the power-supply unit cable through the routing guides on system fan.
6 Connect the power-supply unit cable to its connector on the system board.
7 Install the:
a back cover
b USB dongle-bay cover
c stand
8 Follow the procedure in After working inside your computer
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Removing and installing components