Dell Vostro 3560 (Early 2012) - Manual (Page 33)

e) memory
f) optical drive
g) hard disk drive
h) keyboard
i) display hinge cover
j) palmrest
k) system board
3. Disconnect the system fan cable from the system board.
4. Remove the screws that secure the heat sink to the system board.
5. Lift up and remove the heat sink from the system board.
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