Dell Latitude E6420 (Early 2011) - Manual (Page 84)

Installing the System Board
1. Align the system board into its original position on the computer.
2. Connect the system board to the I/O board.
3. Connect the Smart Card reader cable, Media Board cable, and DC-in Cable
to the system board.
4. Replace and tighten the screws that secure the system board to the
computer.
5. Route and connect the video camera and LED cables to the system board.
6. Place the video cable holder and tighten the screws securing the video
cable holder to the system board.
7. Connect the speaker cable to the system board.
8. Install the
ExpressCard Cage
9. Install the Palmrest Assembly .
10. Install the Modem Card .
11. Install the Keyboard .
12. Install the Keyboard Trim .
13. Install the Bluetooth Card .
14. Install the Heat Sink and Processor .
15. Install the Coin Cell Battery .
16. Install the WWAN Card .
17. Install the WLAN Card .
18. Install the Hard Drive .
19. Install the Memory .
20. Install the Optical Drive .
21. Install the ExpressCard .
22. Install the Base Cover .
23. Install the SD Card .
24. Install the Battery .
25. Install the ATG Port Cover (only for E6420 ATG systems).
26. Install the ATG Handle (only for E6420 ATG systems).
27. Follow the procedures in After Working Inside Your Computer .
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