Dell Latitude E5420 - Installing the System Board

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Dell Latitude 5420/E5420/E5420m
Owner's Manual
Installing the System Board
1. Align the system board to the port connectors and place the system board
in the computer.
2. Engage the connector on the back of the system board to the input/output
(I/O panel).
3. Tighten the screws to secure the system board.
4. Connect the following cables to the system board:
❍ thermal fan cable
❍ speaker cable
❍ audio board cable
❍ bluetooth cable
5. Replace the
support brackets.
6. Replace the
LED board.
7. Replace the
display assembly.
8. Replace the
ExpressCard/Smart Card/PCMCIA module.
9. Replace the
palm rest.
10. Replace the
processor.
11. Replace the
heat sink.
12. Replace the
CPU door..
13. Replace the
wireless wide area network (WWAN).
14. Replace the
wireless local area network (WLAN).
15. Replace the
hard drive.
16. Replace the
optical drive.
17. Replace the
keyboard.
18. Replace the
keyboard trim
19. Replace the
memory.
20. Replace the
back panel.
21. Replace the
secure digital (SD) card.
22. Replace the
subscriber identity module (SIM) card.