- 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
Screw size list
| Component | #6.32x1.4  | #6-32 | M3x6  | M3x5  | M3x3  | M2x3.5  |
|---|---|---|---|---|---|---|
| System board | 5 | 1 | 1 | |||
| SSD card screw nut | 1 | |||||
| Hard disk drive caddy | 1 | |||||
| Power supply unit | 3 | |||||
| Front IO bracket | 1 | |||||
| SD card reader | 2 | |||||
| Type C/HDMI/DP module | 2 | |||||
| Internal antenna | 2 | |||||
| Wifi card | 1 | |||||
| SSD card | 1 |
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