Owners Manual
Table Of Contents
- Precision 3640 Tower Service Manual
- Contents
- Working on your computer
- Technology and components
- Major components of your system
- Disassembly and reassembly
- Recommended tools
- Screw list
- Cover
- PSU hinge
- Bezel
- Memory module
- Hard drive
- Optical drive
- Graphics card
- WLAN module and SMA antenna
- IO panel
- Power button module
- Speaker
- Intrusion switch
- Solid state drive
- Coin cell battery
- Power supply unit
- Front fan
- Top fan
- Heatsink assembly
- Voltage regulator heat sink
- Processor
- System board
- Troubleshooting
- Getting help and contacting Dell
- Optional IO card
- Cable cover
- Dust filter
- Chassis rubber feet
Steps
1. Assemble the WLAN module with the SMA antenna.
2. Connect the antenna cable to the WLAN module.
3. Replace the plastic bracket on the antenna connectors of the WLAN module.
4. Insert the WLAN module into the M.2 slot on the system board.
5. Replace PCIe bracket into its slot on the chassis.
6. Route the antenna cables along the rubber guides on the system board and replace the single (M2x3.5) screw securing the
WLAN module to the system board.
Next steps
1. Close the psu hinge.
2. Install the cover.
3. Follow the procedure in after working inside your computer.
IO panel
Removing the IO panel
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the cover.
3. Open the psu hinge.
4. Remove the bezel.
5. Remove the optical drive.
About this task
The following images indicate the location of the IO panel and provides a visual representation of the removal procedure.
42
Disassembly and reassembly