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I've seen links on the web about going into Apple > About This Mac but it doesn't tell me information specific enough to help me purchase new RAM. Namely, the specific version of my Mac.

Here is what System Information says

Model Name:            MacBook
Model Identifier:      MacBook2,1
Processor Name:        Intel Core 2 Duo
Processor Speed:       2 GHz
Number Of Processors:  1
Total Number Of Cores: 2
L2 Cache:              4 MB
Memory:                1 GB
Bus Speed:             667 MHz
Boot ROM Version:      MB21.00A5.B07

On macsales I see the following text

  • MacBook 1.83GHz and 2.0GHz models with Core Duo support maximum of 2.0GB memory installed

  • MacBook 1.83GHz and 2.0GHz Core 2 Duo Models (May/2007) support maximum of 4.0GB memory installed, MacBook 2.0GHz Core 2 Duo ‘Santa Rosa’ (Nov/2007) models Apple Factory specification maximum 4.0GB. OWC tested to support a maximum of 6.0GB.

I bought my MacBook in November 2007 but don't know which one I got. How can I or other Mac users find out which hardware version they have?

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up vote 6 down vote accepted

(Note, the first item in your quote from OWC is “Core Duo”, not “Core 2 Duo”.)

According to, the ones with the 667Mhz bus are the May/2007 model.

OWC's MyOWC function says that the November/2007 MacBooks are “MacBook3,1”.

Some useful sites to identify Macs:

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Argh I did not mean to -1 this. The accept button on android browser does not work and I also have fat fingers!. Will fix this when I am home – Stewart Robinson Nov 15 '09 at 9:42
You'll need to edit this answer for me to revert the -1. so sorry. I do care about your rep. – Stewart Robinson Nov 15 '09 at 14:06
ok I fixed my -1 mistake. thanks for your answer! – Stewart Robinson Nov 16 '09 at 19:57

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