Installing iMac Intel 20" EMC 2105 and 2118 CPU Fan

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Fix a broken CPU fan to keep processor temperatures under control.

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Tools
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Add Note Edit Step 1 — Access Door  ¶ 

  • Loosen the two Phillips screws securing the access door to your iMac.

  • Both screws remain captive within the access door.

  • Remove the access door.

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Add Note Edit Step 2 — Front Bezel  ¶ 

  • Remove the following screws along the lower edge of your iMac:

    • Three 6 mm T8 Torx screws

    • One 8 mm T8 Torx screw (Right side of the RAM slot on 2105)

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Add Note Edit Step 3  ¶ 

  • Re-orient your iMac so it sits upright on the stand.

  • Insert a plastic card up into the corner of the air vent slot near the top of the rear case.

  • Push the card toward the top of the iMac to release the front bezel latch.

  • Pull the front bezel away from the rear case.

  • Repeat this process for the other side of the front bezel.

  • It may be necessary to apply several layers of duct tape to the top of the access card to aid in releasing the latches.

  • If the bezel refuses to release, try lifting the lower edge of the front bezel slightly away from the rear case (detailed in the next few steps) and repeat the latch release process.

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