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How to replace the power button in an intel iMac.

  1. To get to the power button first remove the hard drive fan as seen in other guides.
    • To get to the power button first remove the hard drive fan as seen in other guides.

  2. This is a picture of the button in place with the connector to the logic board removed.
    • This is a picture of the button in place with the connector to the logic board removed.

    • There are three plastic pins protruding up from the main back case that the button fits over. They appear to be slightly melted and mashed to hold it in place. I used a pocket knife to pry it up and off the posts.

  3. Here it is with the back plate of the button pried off.  This exposes a white plastic washer under it. Here it is with the back plate of the button pried off.  This exposes a white plastic washer under it.
    • Here it is with the back plate of the button pried off. This exposes a white plastic washer under it.

  4. The center of the washer has a center locking pin to correctly place it on the back of the button.   The washer is concave and the concave side faces the button,  This gives the button a spring to it so that it will pop back out.
    • The center of the washer has a center locking pin to correctly place it on the back of the button. The washer is concave and the concave side faces the button, This gives the button a spring to it so that it will pop back out.

  5. This is he back of the button that will now just push out.  Picture #2 is with the button removed. This is he back of the button that will now just push out.  Picture #2 is with the button removed.
    • This is he back of the button that will now just push out. Picture #2 is with the button removed.

  6. Test the button to see if it works.
    • Test the button to see if it works.

    • After replacing the button, use something (like a low temperature soldering iron) that will melt the tops of the white plastic pegs to secure the button in place.

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To reassemble your device, follow these instructions in reverse order.

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