Dell Latitude XT3 (Mid 2011) - Manual (Page 95)

19. Lift the right edge of the system board to release it from the port connectors on the
left and remove the system board.
Installing the System Board
1. Place the system board.
2. Tighten the screws to secure the system board.
3. Connect the cables to the system board.
4. Flip the computer and connect the cables to the back of the system board.
5. Flip the computer and connect the modem-connector cable to the system board.
6. Replace the palmrest.
7. Replace the WLAN switch board.
8. Replace the processor.
9. Replace the heat sink.
10. Replace the base cover.
11. Replace the WWAN card.
12. Replace the WLAN card.
13. Replace the memory.
14. Replace the hard drive assembly.
15. Replace the keyboard.
16. Replace the keyboard trim.
17. Replace the back panel.
18. Replace the SD card.
19. Replace the SIM card.
20. Replace the battery.
21. Follow the procedures in
After Working Inside Your Computer.
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