Dell Vostro V131 (Mid 2011) - Manual (Page 57)

Removing The Heat Sink
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1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the Subscriber Identity Module (SIM) card .
4. Remove the Secure Digital (SD) card .
5. Remove the base cover .
6. Remove the keyboard .
7. Remove the hard drive .
8. Remove the memory .
9. Remove the palm rest .
10. Remove the Wireless Wide Area Network (WWAN) card .
11. Remove the Wireless Local Area Network (WLAN) card .
12. Remove the display assembly .
13. Remove the system board .
14. Disconnect the heat sink cable from the system board.
15. Loosen the captive screws that secure the heat sink to the system board.
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