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Precision 3640 Tower Service Manual

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 1. Heatsink assembly - 65 W or 80 W CPU
Installing the heatsink assembly
Figure 2. Heatsink assembly - 125 W CPU
Installing the heatsink assemblyHeatsink assembly - 125 W CPU Fan Connect the cable.

Steps

  1. Replace the heatsink assembly on the top of processor preassembled with thermal gel.
  2. NOTE:Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board.
    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.

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