Dell Precision 3551 Service Manual

1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
3. Remove the battery.
4. Remove the solid state drive.
5. Remove the HDD.
6. Remove the WLAN card.
7. Remove the WWAN card.
8. Remove the inner frame.
9. Remove the memory module.
10. Remove the LED board.
11. Remove the speakers.
12. Remove the display assembly.
13. Remove the power button with fingerprint reader.
14. Remove the DC-in port.
15. Remove the touchpad.
16. Remove the system board.

    NOTE: The system board can be removed along with the heat sink.

The figure indicates the location of the palm-rest and keyboard assembly and provides a visual representation of the removal procedure.