Owners Manual
Table Of Contents
- Precision 3640 Tower Service Manual
- Working on your computer
- Technology and components
- Major components of your system
- Disassembly and reassembly
- Recommended tools
- Screw list
- Chassis rubber feet
- Cover
- SD card—optional
- Bezel
- Hard drive
- PSU hinge
- Graphics card
- Memory module
- Speaker
- Coin cell battery
- Power supply unit
- Optical drive
- WLAN module and SMA antenna
- IO panel
- Solid state drive
- Power button module
- Heatsink assembly
- Voltage regulator heat sink
- Front fan
- System fan
- Optional IO card
- Processor
- Intrusion switch
- System board
- Troubleshooting
- Getting help and contacting Dell
- Cable cover
- Dust filter
4. Install the:
a. Heatsink assembly
b. PSU hinge
c. Cover
5. Follow the procedure in After Working Inside Your Computer.
Intrusion switch
Removing intrusion switch
Steps
1. Follow the procedure in Before working inside your computer.
2. Remove the cover.
3. Open the PSU hinge.
4. To remove the intrusion switch:
a. Disconnect the intrusion switch cable from the connector on the system board [1].
b. Unroute the intrusion switch cable from the routing clips on the chassis [2].
c. Slide the intrusion switch and lift it to remove from the computer [3].
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Disassembly and reassembly