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Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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What is the maximum ram in a MacBook Pro 13

I have a MacBook Pro 13 Mid2012 Specs: Intel Core i7 2.9Ghz, 8GB Ram, 750GB HDD. i want to know what is the maximum upgrade of ram i can do for it.

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RAM Type: PC3-12800 DDR3L Min. RAM Speed: 1600 MHz

Details: Supports 1600 MHz PC3-12800 DDR3L SDRAM SO-DIMMs (204-pin).

Standard RAM: 8 GB Maximum RAM: 16 GB*

Details: 8 GB of RAM is installed as two 4 GB modules, no slots free.

*Apple officially supports a maximum of 8 GB of RAM, but third-parties have determined that this model actually is capable of using up to 16 GB of RAM with two 8 GB memory modules.


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Crucial claims one slot can be free and you can mix a 2GB with a 8 GB. Thoughts on this?


That is correct. You lose a bit of speed from interleaving (using identical pairs), but the increase supersedes that slight loss.


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As mentioned by Mayer above, the max official capacity is 16GB and the MacBook Pro itself can support up to 32GB unofficially. Here's the catch.

If you spend 100s of bucks just the sake of upgrading to the unofficial maxed out 32GB memory, in real world experience for basic application uses, you wold not see any significant speed perform. I would say you won't see any speed boost at all.

If you are rendering movies, editing RAW images or something like that, you will see smooth operation after 32GB memory upgrade for sure. Just make sure that if you need 32GB unofficial upgrade, try keeping your computer cool along heavy app operation and workflows. You will not only void warranty, also risk frying up fixed clocked Intel.

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Please Puru sayme where you have founded on 2012 year a DDR3 PC3 SODIMM bank memory of 16Gb for upgrade! ;-))


So far I have try to upgrade it using DDR3L *Low Voltage Version of DDR3 for 16GB. It works well. DDR3L got the 16GB version. That one I didn't test yet. If anyone can help me test 32GB upgrade using 2x16GB DDR3L that will be great. :)


mohd - it maxes out at 16GB


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on the MacBook Pro, 16GB is the MAX you can add. anything about 16GB is not even in the question, its not going to recognize anything above 16. Glad to help :)

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Thai Touch will be eternally grateful.
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