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MacBook w/ 4GB ram w/ Leopard?
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Fresh-Faced Recruit
Join Date: Sep 2006
Location: Toronto
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I just installed a fresh copy of Leopard on the latest MacBook revision and noticed that the activity monitor now shows 4GB total ram instead of 3GB as it was in Tiger. Running top in the terminal also confirms this. Is this a bug or does Leopard enable the previously disabled 1GB of ram? Just curious...
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13.3" MacBook Black 2.16GHz, 4GB DDR-2, 200GB 7200rpm
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Note that Free+Used is still 3GB... it's just misreporting the number under the pie chart. Notice the 2GB free takes about two thirds of the pie chart, not half.
The chipset is limited to addresing ~3.1 or 3.2GB, but I believe Apple just cuts it down to 3GB even with their EFI firmware. So even if Apple made a firmware change with Leopard, you still wouldn't get 4GB.
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Fresh-Faced Recruit
Join Date: Sep 2006
Location: Toronto
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Thats what I was thinking would be the result, but I was holding on to hope that something was adjusted. Thanks for the clarification.
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13.3" MacBook Black 2.16GHz, 4GB DDR-2, 200GB 7200rpm
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Moderator Emeritus
Join Date: Apr 2001
Location: Fort Lauderdale, FL
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What is the point of running 4GB again? The OS doesn't take advantage of the extra GB but applications do?
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ice
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Posting Junkie
Join Date: Jan 2006
Location: Colorado
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No, on the new MacBooks, 4Gb can be fully taken advantage of.
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Junior Member
Join Date: Sep 2007
Location: New Jersey
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Yep the new macbooks support 4 gb
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Originally Posted by IceEnclosure 
What is the point of running 4GB again? The OS doesn't take advantage of the extra GB but applications do?
On a pre-November 2007 Core 2 Duo MacBook, installing 2x2GB RAM only lets you use 3GB, but marginally better graphics performance than 2+1GB.
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