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iMac Intel 20" EMC 2105 and 2118 Heat Sinks Replacement

Use this guide to replace your heat sinks.

단계 1 Heat Sinks  ¶ 

Remove the 6.1 mm T8 Torx screw from both sides of the heat sink nearest the logic board (two screws total).

단계 1 Heat Sinks  ¶ 

  • Remove the 6.1 mm T8 Torx screw from both sides of the heat sink nearest the logic board (two screws total).

단계 2  ¶ 

Remove the following ten screws: Eight 7.8 mm T8 Torx.

단계 2  ¶ 

  • Remove the following ten screws:

  • Eight 7.8 mm T8 Torx.

  • Two 6.1 mm T8 Torx.

  • If the eight screws around the processors refuse to unscrew, use a Phillips screwdriver to hold the lug from the one side of the board while you remove the Torx screw from the other side.

단계 3  ¶ 

Carefully lift both metal heat sink brackets off the logic board. Carefully lift both metal heat sink brackets off the logic board.

단계 3  ¶ 

  • Carefully lift both metal heat sink brackets off the logic board.

단계 4  ¶ 

Lift the logic board off the heat sinks.

단계 4  ¶ 

  • Lift the logic board off the heat sinks.

  • If a heat sink seems to be stuck, carefully pry it away from the logic board to separate the solidified thermal paste.

  • If you need to mount the heat sink back into the iMac, we have a thermal paste guide that makes replacing the thermal compound easy.

  • During reinstallation it is helpful to install the heat sinks one at a time, starting with the one closest to the logic board.