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iMac Intel 21.5" EMC 2428 GPU Card Replacement

Replace the GPU card on your iMac Intel 21.5" EMC 2428.

Use this guide to install a new GPU card.

Passo 1 GPU Card  ¶ 

Remove the four 6.5 mm T8 Torx screws securing the GPU heat sink to the GPU. It may be necessary to use a #1 screwdriver to hold the sockets on the GPU heat sink stationary as you loosen the T8 Torx screws.

Passo 1 GPU Card  ¶ 

  • Remove the four 6.5 mm T8 Torx screws securing the GPU heat sink to the GPU.

  • It may be necessary to use a #1 screwdriver to hold the sockets on the GPU heat sink stationary as you loosen the T8 Torx screws.

Passo 2  ¶ 

Remove the clamping bracket from the back of the GPU.

Passo 2  ¶ 

  • Remove the clamping bracket from the back of the GPU.

Passo 3  ¶ 

Remove the GPU from the GPU heat sink. Make sure to apply a new layer of thermal paste to the face of the GPU (the area boxed in red) before reattaching the heat sink. Our thermal paste guide makes it easy. Before installing new thermal paste and mounting a new GPU to the GPU heat sink, use the flat end of a spudger to push the VRAM thermal goop closer together so it will better contact the VRAM when the GPU is installed.

Passo 3  ¶ 

  • Remove the GPU from the GPU heat sink.

  • Make sure to apply a new layer of thermal paste to the face of the GPU (the area boxed in red) before reattaching the heat sink. Our thermal paste guide makes it easy.

  • Before installing new thermal paste and mounting a new GPU to the GPU heat sink, use the flat end of a spudger to push the VRAM thermal goop closer together so it will better contact the VRAM when the GPU is installed.