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
Figure 10. VR heatsink assembly for systems shipped with 65 W or 80 W CPU
Figure 11. VR heatsink assembly for systems shipped with 125 W CPU
Steps
1. Align and replace the VR heatsink on the system board.
2. Tighten the captive screws that secure the VR heatsink to the system board.
Disassembly and reassembly
67