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Level 1

15 points

Can I USE PC3-12800 DDR3L DIMMs in a MacBook5,1?

I understand that in some cases faster memory will work in an old computer. And I understand that putting faster memory in won't make the computer run faster.

I'm raising the issue because I'm planning to buy new memory for a MacBookPro9,2, and I'd like to take the DIMMs now in the newer laptop and put them in the older one just to increase the amount of RAM -- essentially completing the upgrade of two machines for the price of one.

Is this likely to work? Would there be any risk in trying the newer, faster RAM in the older MacBook5,1?

Thanks very much.

Dave

MacBook, OS X El Capitan (10.11), MacBook5,1

Posted on Mar 10, 2018 10:44 AM

Best reply

Kappy

Level 10

361,741 points

Posted on Mar 10, 2018 10:59 AM

No. Do not install memory that is not the same spec as that which is specified by Apple. Buy the right memory product for the computer which is 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM. Testing by OWC indicates you can install 8GBs of RAM - two 4GB modules.

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Can I USE PC3-12800 DDR3L DIMMs in a MacBook5,1?

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