Installing The Heat Sink - Dell Vostro 3405 Service Manual

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The following images indicate the location of the heat sink and provides a visual representation of the removal procedure.
Steps
1. In reverse sequential order (4>3>2>1) loosen the four captive screws that secure the heat sink to the system board.
NOTE:
The number of screws varies depending on the configuration ordered.
2. Lift the heat sink from the system board.

Installing the heat sink

Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
NOTE:
If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that
thermal conductivity is achieved.
The following images indicate the location of the heat sink and provides a visual representation of the installation procedure.
Disassembly and reassembly
39

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