Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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Compatible replacement or not?

Is MacBook Core 2 Duo LogicBoard will be a compatible to the Old MacBook Core Duo year 2005?

As I would like to upgrade to Mountain Lion. As actually the latest I have managed is only Leopard.

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Can you supply the last three digits of your serial number so we can correctly identify which model you have now.


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Well I have some good news and some bad:

Your system is on the edge of being supported. In reviewing this TN your system makes the grade running Lion - Systems that support Lion.

But, Apple created a new TN for Mountain Lion - Systems that Support Mountain Lion which clearly implies it is not supported.

I think Apple is looking at its stock build of this system. If you review the other supported systems you will note they have larger hard drives (yours 80GB the others 120GB or bigger).

The other fact here is both Lion & Mountain Lion need more memory than what your system has. Your system can only offer the OS & Apps a max of 3GB using 2 - 2GB memory modules which is on the lower end of what I would recommend (surfing, iTunes, light app use...)

So you'll need to upgrade both and then your limited to Lion by Apples TN. I still think you can upgrade to Mountain Lion on this system (if you've done all of the needed hardware upgrades) but then again I've not tried it.

So it all comes down to costs and risks - I still think you should consider buying a newer system than trying to do all of the upgrades (check out all of the costs Vs a used system) knowing Apple won't support anything higher than Lion on it.

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I agree with Dan. Sell your CoreDuo and buy more recent model like the A1342 (white unibody 2009/2010) that can take 8gb ram, has a way better video card than the A1181, del screen, a faster bus and cheaper than the MBP 13" with nearly the same specs.


Thanks Dan,

Five last serial number: KMWGL

Processor : Intel core 2 Duo

Memory: 667 Mhz DDR2 SDRAM

Hope will be compatible as would like to have Mountain Lion operating to have Icloud working.



You are correct the Intel Core chipped systems will not run Lion or Mountain Lion as they are not 64bit chips. You would need to swap-out the entire logic board to a similar model that has a Intel Core 2 chip.

You may find the cost and the risk of doing this maybe more than just buying a newer system. Have you looked at getting a used system that can run Lion or Mountain Lion?


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