Dell Vostro 3750 (Early 2011) - Manual (Page 100)

16. Lift the heatsink up and remove it from the system board.
Installing The Heatsink
1. Install the screws securing the heatsink to the system board.
2. Install the
system board .
3. Install the ExpressCard cable .
4. Install the system fan .
5. Install the display assembly .
6. Install the WLAN card .
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