- Notes, cautions, and warnings
- Working on your computer
- Technology and components
- Major components of your system
- Removing and Installing components
- Recommended tools
- Screw size list
- Motherboard layout
- Side cover
- Expansion card
- Coin cell battery
- Hard drive assembly
- Front Bezel
- Hard drive and optical drive module
- Optical drive
- Memory module
- Heat sink and fan
- Intrusion switch
- Power switch
- Processor
- M.2 PCIe Solid State Drive -SSD
- Intel Optane card
- SD card reader - optional
- Internal Antenna - optional
- External Antenna - optional
- M.2 2230 WLAN card - optional
- Power supply unit
- Speaker
- System fan
- System board
- Troubleshooting your computer
- Getting help
- Dust Filter for Dell Precision 3431 Small Form Factor
- Installing the USB Type-C card
- Installing the VGA card
- Cable cover for Dell Precision 3431 Small Form Factor
Dell Precision 3431 Small Form Factor Service Manual
After working inside your computer
After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your computer.
- Connect any telephone or network cables to
your computer.
CAUTION: : To connect a network cable, first plug the cable into the network device and then plug it into the computer.
- Connect your computer and all attached devices to their electrical outlets.
- Turn on your computer.
- If required, verify that the computer works correctly by running ePSA diagnostics.
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