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The March 2015 update of Apple's 13" MacBook Air features fifth generation Intel Core i5 and i7 processors, resulting in slightly increased performance and battery life.

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Need to find the right Logic board


I want replace the logic board on this macbook. But not sure of the correct part number. My niece spilled coffee on the keyboard and it never powered on after that.

Model is MQD42LL/A (A1466). 13.3”/1.8GHz/8GB/256GB.

Can anyone guide me what the correct part for the logic board of this macbook?

(btw, not sure if it is early 2015, I just selected it)



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Technically you have a 2017 system: 13" MacBook Air 1.8 GHz Core i5

The logic board is physically the same as the older 2015, Apple populated it with a slightly faster CPU as the Intel stopped producing the older version.


Thanks arbaman & Dan for your replies.


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There’s no need to buy a board with exactly the same specs as your old one, you might choose between other compatible ones or even upgrade, but it’s essential you have exactly the same board model. You’ll find a code on the board itself reading as 820-xxxx-x (820-3437-A probably). With that number available you won’r run the risk of a wrong purchase.

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@ali2019 - Review the IFIXIT guide here: MacBook Air 13" Early 2015 Logic Board Replacement. IFIXIT lists the boards with their Apple P/N’s which is the best way to get a compatible board.

Here’s one source for your board MacBook Air 13.3" 1.8 GHz Logic Board, i5, 8GB, Mid 2017 - Apple P/N 661-08140

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ali2019 will be eternally grateful.
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