iMac Intel 20" EMC 2133 and 2210 Logic Board Replacement
- Author: Walter Galan
- Time estimate: 1 - 2 hours
- Difficulty: Difficult
Like brain surgery? Use this guide to replace your logic board.
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- Access Door 1 step
- Glass Panel 2 steps
- Front Bezel 3 steps
- Display Panel 5 steps
- Left Speaker 5 steps
- Logic Board 18 steps
Step 1 — Logic Board ¶
Disconnect the power button and CPU fan by lifting their connectors straight up off the logic board.
Step 2 ¶
Disconnect the SATA data cable from the logic board by carefully pulling it straight away from its socket.
Step 3 ¶
Pull the SATA data cable out of its channel in the logic board and tuck it aside near the left edge of the rear case.
Step 4 ¶
Disconnect the DC-in cable by simultaneously depressing both locking arms and pulling its connector away from the socket on the logic board.
Step 5 ¶
Use the flat end of a spudger to pry both AirPort antenna connectors up off the AirPort card.
Step 6 ¶
Move both AirPort antennas toward the lower edge of your iMac, out of the way of the logic board.
Step 7 ¶
Use the flat end of a spudger to pry the Bluetooth antenna connector up off the Bluetooth board.
Step 8 ¶
Pull the camera cable connector straight up out of its socket on the logic board.
Step 9 ¶
Pull the right speaker cable connector straight up out of its socket on the audio board.
Step 10 ¶
Remove the single 12 mm T10 Torx screw securing the right speaker to the rear case.
Lift the right speaker up and out of the rear case, to clear the plastic mounting pins underneath it.
Step 11 ¶
Lift the optical drive fan connector straight up out of its socket on the logic board.
Step 12 ¶
Use the flat end of a spudger to pry the optical drive cable clip up off the optical drive connector.
Lift the optical drive cable clip off the logic board.
Step 13 ¶
Push the optical drive cable connector toward the top of your iMac to disconnect it from the logic board.
Step 14 ¶
Lift the microphone cable connector straight up out of its socket on the audio board.
Step 15 ¶
If necessary, remove the piece of tape securing the thermal sensor and fan cables to the chassis.
Step 16 ¶
Disconnect the following three cables from the logic board:
Hard drive thermal sensor.
Optical drive thermal sensor.
Hard drive fan.
Step 17 ¶
Remove the following 13 screws securing the logic board to the rear case:
Six 7.2 mm coarse-thread T10 Torx.
Two 6.8 mm T8 Torx. When reinstalling these two screws, don't overtighten them, as the plastic tabs they hold down are thin and brittle, and can crack.
Three 7 mm fine-thread T10 Torx.
Two 24 mm T10 Torx.
Step 18 ¶
Lift the logic board out of the rear case, minding any cables that may get caught.