Inspiron 7405 2n1 Service Manual

1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
3. Remove the battery.
4. Remove the coin-cell battery.
5. Remove the memory modules.
6. Remove the M.2 2230 solid-state drive or M.2 2280 solid-state drive, as applicable.
7. Remove the I/O board.
8. Remove the speakers.
9. Remove the heat sink.
10. Remove the fan.
11. Remove the touchpad.
12. Remove the power-adapter port.
13. Remove the power-button board.
14. Remove the display assembly.
15. Remove the system board.
    NOTE The system board can be removed or installed together with the heat sink attached. This simplifies the procedure and avoids breaking the thermal bond between the system board and the heat sink.

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