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
Tighten the four captive screws that secure the heat sink assembly and lift it from the computer.
3. Replace the system fan on top of the heat sink assembly and tighten the four captive screws and connect the fan cable 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.
Voltage regulator heat sink
Removing the voltage regulator heat sink
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the cover.
3. Open the psu hinge.
4. Remove the graphics card.
5. Remove the solid state drive.
6. Remove the heat sink assembly.
About this task
The following images indicate the location of the voltage regulator heat sink and provides a visual representation of the removal
procedure.
Figure 8. VR heatsink assembly for systems shipped with 65 W or 80 W CPU
Disassembly and reassembly
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