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Apple Computing Products:
macOS - Desktop Hardware
memory upgrade
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<blockquote data-quote="wyattoons" data-source="post: 415801" data-attributes="member: 32609"><p>Keeping that extra 1 Gb of RAM in there will negate just about any adverse effects.</p><p></p><p>I have heard questions on mixing sizes, but am not convinced, more importantly, it is not cost effective to use all 512's, nor will it make adding more RAM easier later on. And by keeping the 512's in there, you get to take advantage of the quad channel memory controller and you get an extra Gb of RAM. </p><p></p><p>The important thing is to always keep the higher capacity DIMMs on those inside slots where they have a straight shot to the controller.</p><p></p><p>I also thought about my original answer and I don't see any reason to switch the 512s from the top riser to the bottom. Just adding the new DIMMs on the bottom riser opens up the extra channels and the system should perform identical regardless of which pair is on which riser.</p><p></p><p>Have you looked at Neweggs prices? They are the highest of the bunch, I guess they got looked in to a wholesale price and now they can't drop the price like Crucial, OWC and others have in recent months.</p></blockquote><p></p>
[QUOTE="wyattoons, post: 415801, member: 32609"] Keeping that extra 1 Gb of RAM in there will negate just about any adverse effects. I have heard questions on mixing sizes, but am not convinced, more importantly, it is not cost effective to use all 512's, nor will it make adding more RAM easier later on. And by keeping the 512's in there, you get to take advantage of the quad channel memory controller and you get an extra Gb of RAM. The important thing is to always keep the higher capacity DIMMs on those inside slots where they have a straight shot to the controller. I also thought about my original answer and I don't see any reason to switch the 512s from the top riser to the bottom. Just adding the new DIMMs on the bottom riser opens up the extra channels and the system should perform identical regardless of which pair is on which riser. Have you looked at Neweggs prices? They are the highest of the bunch, I guess they got looked in to a wholesale price and now they can't drop the price like Crucial, OWC and others have in recent months. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
memory upgrade
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