2.0GHz, 2.3GHz, or 2.6GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.8GHz) with 6MB shared L3 cache.

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Is the early 2013 lower case compatible?

Looking at replacing the lower case for the 15" Retina Late 2013, will a 2012/early 2013 lower case work?

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I'm trying to find out the same thing. I've seen parts both here and ebay listed as being the same part, but I've seen elsewhere that the parts actually have different numbers:

2012: 923-0090

2013: 923-0411

as seen here:


Anyone know for sure?

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I received this email back from iFixit Support:

"Thanks for your email. We have tested the bottom cases on those MacBook Pro Retinas, and they are indeed compatible between the two models. If there is more that I can assist you with, please let me know. I’m happy to help and hope you have a magnificent Monday!"

I've gone ahead and ordered a 2013 bottom case for my 2012 15" Retina MBP rebuild (fell off a car and was run over :) — so I'll follow up if there are issues, but sounds like it will work.


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Ramon will be eternally grateful.
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