Dell Latitude E5520 (Early 2011) - Manual (Page 78)

23. Remove the thermal fan.
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Installing the Thermal Fan
Installing the Thermal Fan
1. Place the thermal fan in the original position.
2. Tighten the screw to secure the thermal fan.
3. Replace the system board .
4. Replace the support brackets .
5. Replace the display assembly .
6. Replace the ExpressCard/Smart Card/PCMCIA module .
7. Replace the palm rest .
8. Replace the processor .
9. Replace the heat sink .
10. Replace the CPU door .
11. Replace the wireless local area network (WLAN) .
12. Replace the wireless wide area network (WWAN) .
13. Replace the hard drive
14. Replace the optical drive
15. Replace the keyboard .
16. Replace the keyboard trim .
17. Replace the memory .
18. Replace the back panel .
19. Replace the secure digital (SD) card .
20. Replace the subscriber identity module (SIM) card .
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