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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How to Max out my Memory?( I have 2G in MacBook)

In a recent Macworld Aug 2010) pg 30, they say my model can take (2/3)G 2G is apple max and 3 G is actual for models up to mid 2007..and (4/6) G for others (i assume they mean later than mid 2007).

How can I be sure which model I have (2/3)G or (4/6)G model? When I bought it I think they told me 2G was the max.

If I have 2/3G case and already have 2 G in machine,

Do I take out memory in there now (say 1 G and 1G in the 2 memory slots... and... do what?

a) put back one existing 1G in one slot and new 2G in other slot?

b) buy 2 new ones...1G and 2G and install those PC2-5300 and PC2-6400 RAM types?

If I override apple max, and use the macworld max, is there any danger in doing this like overheating if i make long computational intensive computer runs?


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Apple has a document on figuring out which model you have --

You need to figure out if you have a "Mid 2007" or "Late 2007" model ... then, consult to see how much memory your machine can take. (As you said, Apple says 2G is the limit for "Mid 2007" and 4G is the limit for "Late 2007".)

If you want to try to put 3GB into it, you will need to do "a)" -- use one of your existing 1GB RAM modules, and replace the other one with a 2GB module. Keep the extra 1GB module in a safe place!

There's no danger of overheating from adding extra RAM, but cheap RAM can cause system instability (freezing/locking up, kernel panic, etc). Go ahead and try it, but make sure you can return the 2GB stick to the place you bought it if it makes your computer unstable.

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