Can a MBP Mid 2012 support a 32GB DDR3 RAM?

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MacBook Pro 15" Unibody Mid 2012

Released June 2012 / Core i7 processor with Turbo Boost / Up to 1 GB GDDR5 Video RAM

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Ali Sadykov @as2019

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发帖于: 2020年8月24日

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Can a MBP Mid 2012 support a 32GB DDR3 RAM?

Hello,

I know that it is not a very repair-ish question, but out of curiosity I had to ask the following:

After a not so long “research“ I came to a conclusion that the Intel® Core™ i7-3615QM Processor my MBP Mid 2012 uses, in theory, supports 32GB ram sticks, however, I’ve never seen or heard of people trying to max their MacBooks out to that extent.

Do you think it is somehow possible to try and use these Crucial CT2KIT204864BF160B Ram sticks they offer on Amazon?
Oh and do you think there might be other factors that would prevent my mac from recognising these ram sticks?

Thanks in advance for your help and knowledge :)

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Your systems specs: 15" MacBook Pro (Mid-2012)

由 Dan 完成的 2020年8月25日

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Dan @danj

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Sorry no your system can only support 16GB of RAM.

While the CPU architecture is able to support 32GB of RAM, the PCH logic used on your system and the systems firmware set the limit.

Remember this is a laptop not a desktop and is using older technology DDR3 which is not being improved upon. As you add RAM or add a second drive you lessen the systems battery run time.

A better direction is putting in a large SSD and using it for virtual RAM.

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Wow, I thought that technology (virtual RAM) died long after the macOS X was released to the public. I still have a Macintosh with RAM Doubler installed, but honestly I’ve never seen people using this kind of software on their newer computers. Thank you very much for answering this question :)

由 Ali Sadykov 完成的 2020年8月26日

@as2019 - Virtual RAM has been part of OS-X from the beginning. OS-8 & OS-9 is when RAM Doubler became popular as RAM was expensive back then. But RAM Doubler was more of a compression tool squeezing the area a given app was using than a true Virtual RAM tool

Virtual RAM back then was not seen as that great as hard drives where still quite slow using PATA (66/100/133 Mb/s) Vs SATA and then still the first version SATA I (1.5 Gb/s). When SATA II (3.0 Gb/) based systems came out it Virtual RAM become more used. Today with faster SATA III (6.0 Gb/s) with SSD's as well as even faster PCIe SSD drives.

由 Dan 完成的 2020年8月27日

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Wow, I thought that technology (virtual RAM) died long after the macOS X was released to the public. I still have a Macintosh with RAM Doubler installed, but honestly I’ve never seen people using this kind of software on their newer computers. Thank you very much for answering this question :) — Ali Sadykov
@as2019 - Virtual RAM has been part of OS-X from the beginning. OS-8 & OS-9 is when RAM Doubler became popular as RAM was expensive back then. But RAM Doubler was more of a compression tool squeezing the area a given app was using than a true Virtual RAM tool

Virtual RAM back then was not seen as that great as hard drives where still quite slow using PATA (66/100/133 Mb/s) Vs SATA and then still the first version SATA I (1.5 Gb/s). When SATA II (3.0 Gb/) based systems came out it Virtual RAM become more used. Today with faster SATA III (6.0 Gb/s) with SSD's as well as even faster PCIe SSD drives. — Dan

MacBook Pro 15" Unibody Mid 2012

Can a MBP Mid 2012 support a 32GB DDR3 RAM?

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