Dell Latitude E6420 (Early 2011) - Manual (Page 47)

Heat Sink
16
Removing The Heat Sink
1. Follow the procedures in Before Working On Your Computer .
2. Remove the ATG Handle (only for E6420 ATG systems).
3. Remove the ATG Port Cover (only for E6420 ATG systems).
4. Remove the Battery .
5. Remove the SD Card .
6. Remove the Base Cover .
7. Disconnect the heat sink assembly cable.
8. Loosen the screws securing the heat sink.
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