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| - | [* red] Remove the four 3.5 mm T5 screws securing the heat sink to the logic board. |
|---|---|
| - | [* black] Grip both ends of the heat sink and lift it up from the logic board. |
| + | [* red] While pressing down on one end of one of the heat sink metal retaining bands above or below the CPU, use your other hand to remove the 3.5mm T5 screw from that end of the band. This will prevent the screw from flying away as the tension on this end of the band is released. Then remove the screw from the other end of the band, and lift out the band. |
| + | [* red] Repeat the process above for the second heat sink metal retaining band. |
| + | [* red] Note that some 15 Inch Macbook Pro models have two GPU chips, with the second (discrete) GPU located externally from the CPU and its integrated GPU chip. The discrete GPU chip will be located between the CPU and the opening for the left-side fan, and will have another heat sink cover plate and four 3.5mm T5 screws to release it. |
| + | [* black] Grip both ends of the heat sink, wiggle it slightly in its horizontal plane to break the bond of the thermal paste, then lift up the heat sink from the logic board. |
| [* icon_reminder] When installing the new heat sink, remember to [guide|744|replace the thermal paste] underneath the heat sink. |