FHP DV1400 ユーザーズマニュアル

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Maintenance and Service Guide
Removal and Replacement Procedures
3. Disconnect the fan cable 1 from the system board.
4. Remove the three silver PM2.0×5.0 screws 2 that secure 
the heat sink to the top cover.
5. Remove the heat sink 3.
Removing the Heat Sink
Reverse the above procedure to install the heat sink.