32gb. ram for MBP MD101LL\A ?

Crucial has 32gb. ram available for mac.

Will it work in the Macbook Pro mid-2012 13-inch ?

https://www.amazon.com/Crucial-PC3L-12800-SODIMM-204-Pin-Memory/dp/B011ISG132/re f=sr_1_3?ie=UTF8&qid=1494467833&sr=8-3&k…

MacBook Pro, macOS Sierra (10.12), Mid-2012, 13", 16gb ram, 500gb. SSD

Posted on May 11, 2017 12:02 PM

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20 replies

May 11, 2017 7:48 PM in response to alex7375

When the MacBook pro (late 2016 models) were announced, there was a criticism that they were not offering 32GB, even as an extra-cost option.


Further discussions turned up that it was a limitation of the Intel low-power processors being used, and getting more than 16GB on a MacBook-class machine would have to wait until Intel came out with later generations of battery-operable processors.


So I expect what you will find is that you cannot run more than 16GB in any Mac notebook computer issued to date.

May 11, 2017 8:21 PM in response to Grant Bennet-Alder

Yes, My mac mini with 4gb of ram running macOS Sierra only utilizes about 2gb. of the 4gb. total.

It has the same dual core i5 CPU as my mid-2012 macbook pro 13-inch.


They both perform about the same. I can't tell the difference.


However my Macbook pro 13 has 16gb of ram and MacOS Sierra ***** up 8-12gb of ram immediately on my Macbook pro.


I don't know why?


However they both perform about the same.

May 12, 2017 5:59 AM in response to alex7375

However my Macbook pro 13 has 16gb of ram and MacOS Sierra ***** up 8-12gb of ram immediately


At about Mavericks, Apple decided to implement a new Memory use policy in Macs.

It comes down to, "unused memory is wasted memory".


They implemented memory compression, because it turned out be faster to compress and uncompress certain items than page it out and back in. They kept more previously read file data in RAM, but improved the ability to instantly purge that data. And they implemented the "Memory Pressure" graph in Activity Monitor.


Macs running Mavericks and later will appear to fill much of available memory much more quickly. They will also run faster because of the changes.

Jul 23, 2017 8:22 AM in response to LemoMac

The MacBook Pro is portable computer that runs on batteries. The main issue surrounding memories larger than 16GB is power consumption. Using more than 16GB RAM also means the use of a larger memory controller chip, one of the fastest and hottest components inside, according to this article:


http://appleinsider.com/articles/16/10/28/apple-limits-2016-macbook-pro-models-t o-16gb-of-ram-to-maximize-battery-life

The Mac Pro [desktop] and the upcoming iMac Pro offer very large memories, and its memory features Error Detection and Correction, a must for very large memories that might be crunching a problem for days to weeks on end.

Aug 1, 2017 9:14 PM in response to LemoMac

Memory controller included in Intel CPU for a long time.


The memory controller inside the processor chip can address 16GB just fine.


I believe that if you want more, you are forced to add an additional External controller chip, in order to decode more addresses.


Regarding soldering memory chips: Memory chips are some of the densest, fastest, and hottest components in the computer, after the memory address decoder. The reliability of soldered memory is vastly greater than memory in sockets.


If you want to debate soldering in the SSD components, we can certainly discuss that on its merits, rather than on reliability issues.

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32gb. ram for MBP MD101LL\A ?

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