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MacBook (13-inch) Take Apart — Heatsink 78
Checking the Thermal Grease
Warning: Whenever the heatsink is separated from the logic board (even if you are
installing the same heatsink or board), the thermal grease must be checked and possibly
replaced. Failure to do so can cause the computer to overheat and be damaged.
With the heatsink removed, check the underside of the heatsink:
• If it has a thin sheet of transparent lm covering the square heatsink pads and pre-
applied thermal grease, then you do not need to reapply thermal grease. Do not remove the
thin lm. Skip step 2 and go to step 3 to clean up any excess thermal grease that might have
squeezed out onto the chips. Then go directly to step 8.
• If you are installing a new heatsink and it is packaged with clear, rigid plastic, remove the
clear plastic from the heatsink plate. Because the heatsink includes pre-applied thermal
grease, skip step 2 and go to step 3. Then go directly to step 8.
1.