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Remove the fan:
1. Disconnect the fan cable (1).
2. Remove the 2 Phillips PM screws securing the fan to the unit (2), and then lift the fan upwards
(3).
3. Remove the piece of tape on the underside of the heat sink that secures the fan to the unit (4).
System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
For non-touch models:
For use only with computer models equipped with an Intel 1. 8Hz processor but not WWAN
capability (includes replacement thermal material)
686086-002
For use only with computer models equipped with an Intel 1.7GHz processor, but not WWAN
capability (includes replacement thermal material)
686087-002
689844-002
For use only with computer models equipped with an Intel 1.5Hz processor, but not WWAN
capability (includes replacement thermal material)
693655-001
693656-001
For use only with computer models equipped with an Intel 1.4GHz processor, but not WWAN
capability (includes replacement thermal material)
686088-002
686090-001
56 Chapter 4 Removal and replacement procedures