Dell Vostro 1440 (Mid 2011) - Manual (Page 45)

Removing The System Board
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1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the SD memory card .
4. Remove the keyboard .
5. Remove the optical drive .
6. Remove the memory module .
7. Remove the palm rest .
8. Remove the hard drive .
9. Remove the WLAN card .
10. Remove the heatsink and the CPU fan assembly .
11. Remove the processor .
12. Disconnect the display cable (1), DC-in cable (2), USB board cable (3),
speaker cable (4), audio board cable (5), and the coin-cell battery cable (6).
13. Remove the screws that secure the system board.
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