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. Disconnect the heatsink fan cable from the connector on the system board.
2.
NOTE: Loosen the screws in a sequential order (1,2,3,4) as mentioned on the system board.
Loosen the four captive screws that secure the heatsink assembly and lift it from the system board.
Installing the heatsink assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the heatsink assembly and provides a visual representation of the installation
procedure.
Figure 6. Heatsink assembly - 65 W or 80 W CPU
Disassembly and reassembly
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