Dell Precision 3431 Small Form Factor Service Manual

4. Follow the procedure in After working inside your computer.
Intrusion switch
Removing intrusion switch
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
3. To remove the intrusion switch:
a) Disconnect the intrusion switch cable from the connector on the system board [1].
b) Slide the intrusion switch and lift it away from the system [2].
Installing the intrusion switch
1. Insert the intrusion switch into the slot on the chassis [1].
2. Connect the intrusion switch cable to the system board [2].
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Removing and Installing components

Dell Precision 3431 Small Form Factor Specifications

General

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