Dell Precision 3431 Small Form Factor Service Manual

2. Install the:
a) Hard drive and optical drive module
b) Front bezel
c) Side cover
3. Follow the procedure in After working inside your computer.
System board
Removing system board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a) Side cover
b) Front bezel
c) Hard drive and optical drive module
d) Heat sink and heat sink fan
e) Processor
f) Memory module
g) M.2 PCIe SSD card
h) Intel Optane card
i) SD card reader
j) M.2 2230 WLAN card
3. To remove the I/O panel:
a) Remove the screw that secures the I/O panel [1].
b) Rotate the I/O panel and remove it from the system [2].
Removing and Installing components
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Dell Precision 3431 Small Form Factor Specifications

General

Brand	Dell
Model	Precision 3431 Small Form Factor
Category	Desktop
Language	English