Dell Inspiron 15 (7548, Late 2014) - Manual (Page 44)

Procedure
1 Peel off the mylar tape from the memory modules.
1 mylar tape
2 Loosen the captive screws that secure the heat sink to the system board.
3 Lift the heat sink off the system board.
1 heat sink 2 captive screws (6)
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