Dell Vostro 3550 (Early 2011) - Manual (Page 65)

Installing The Heat Sink
1. Place the heat sink in the slot on the system board.
2. Tighten the screws to secure the heat sink to the system board.
3. Install the
system board .
4. Install the display assembly .
5. Install the ExpressCard board .
6. Install the hold switch .
7. Install the WLAN card .
8. Install the palm rest .
9. Install the keyboard .
10. Install the WWAN card .
11. Install the hard drive .
12. Install the optical drive .
13. Install the memory module .
14. Install the access panel .
15. Install the ExpressCard .
16. Install the memory card .
17. Install the battery .
18. Follow the procedures in After Working Inside Your Computer .
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