3. In the order indicated on the heat sink, remove the four Phillips M2.0 × 2.0 screws (3), and then remove
the heat sink from the computer (4).
4. Thoroughly clean the thermal material from the surfaces of the heat sink and the system board
components each time the heat sink is removed. Replacement thermal material is included with the heat
sink and system board spare part kits. The following illustration shows the replacement thermal
material locations.
Thermal pads (1) and thermal paste (2) are used on the heat sink.
Reverse this procedure to install the heat sink with fans.
Sensor (IR) board
To remove the sensor board, use this procedure and illustration.
30 Chapter 5 Removal and replacement procedures for authorized service provider parts
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