MacBook Pro 13" Unibody Mid 2009 upgrade Ram to 16GB (2x 8GB) 1333MHz?

Question

MacBook Pro 13" Unibody Mid 2009

Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Hello,

I asked iFixit so very long time ago about MacBook Pro 13" Unibody Mid 2009 maximum upgrade.

He confirmed it can upgrade to 16GB. (I sad about max RAM can up to 8 GB (2x4 GB)

Today I will upgrade my Mac to 16GB but its 3 beeps.

I remove 1 slot of 8 GB, its so 3 beep won’t boot. I put old 2 RAM (2x4GB). it can normal boot.

This problem about OS-X 10.8.5 I never update newer version?

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score 1 · Answer 1 · 2020-09-10T09:20:20-07:00

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No! Your system can’t support that much RAM you are limited to 8 MB (2x 4MB SO-DIMM’s)

Here’s your systems specs:

The only MacBook Pro Core 2 Duo that supports 16MB (2x 8MB So-DIMM’s) are these:

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