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Apple Computing Products:
macOS - Notebook Hardware
My macbook specs
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<blockquote data-quote="bobtomay" data-source="post: 868248" data-attributes="member: 24160"><p>So... </p><p>I have 4 GB of RAM in mine also to maintain dual channel mode.</p><p>About This Mac shows 4GB installed</p><p>Activity Monitor shows 4GB under the little circular graph.</p><p></p><p>But, it can only use 3GB.</p><p></p><p>To find out how much your machine can actually use, open up Activity Monitor, go the the System Memory tab, on the bottom left hand side - add up the amount listed next to the two items - 'Free' and 'Used'. Think you'll probably find it only adds up to 3GB. (Or close, mine usually is 2.99GB)</p><p></p><p>And you don't have any programs that require 4GB of RAM in order to run.</p><p></p><p>And, I would venture to say, the site Kash provided does give you an accurate manufacture date. It is not going to provide you with the date of a bottom case replacement, etc.</p></blockquote><p></p>
[QUOTE="bobtomay, post: 868248, member: 24160"] So... I have 4 GB of RAM in mine also to maintain dual channel mode. About This Mac shows 4GB installed Activity Monitor shows 4GB under the little circular graph. But, it can only use 3GB. To find out how much your machine can actually use, open up Activity Monitor, go the the System Memory tab, on the bottom left hand side - add up the amount listed next to the two items - 'Free' and 'Used'. Think you'll probably find it only adds up to 3GB. (Or close, mine usually is 2.99GB) And you don't have any programs that require 4GB of RAM in order to run. And, I would venture to say, the site Kash provided does give you an accurate manufacture date. It is not going to provide you with the date of a bottom case replacement, etc. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
My macbook specs
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