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Crucial DDR2 RAM for new PBooks
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Fresh-Faced Recruit
Join Date: Sep 2005
Status:
Offline
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Crucial has updated their website with DDR2 RAM modules for the new PowerBooks that came out today. I have a question before I buy one of the new powerbooks: How come the Apple site lists the RAM as having a 333mhz bus speed but the Crucial RAM is 533mh? Does this matter at all and will it cause any problems if I have RAM with two different speeds? Is the Crucial memory better because of this? Thanks. 
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Mac Enthusiast
Join Date: Jun 2002
Status:
Offline
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It's not a problem. The PB will run the 533 RAM at 333. If you have 2 chips with different speeds it will default to the lowest speed.
Crucial is very reputable and won't leaving you hanging if you get some problem RAM from them. They'll make good asap.
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Junior Member
Join Date: Oct 2005
Location: Oakland, CA
Status:
Offline
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I think there was a typo on the apple site... it says both 333MHz and PC4200 (533MHz) for the RAM, and they can't both be right.
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
Status:
Offline
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It sounds like they're running PC2-4200 (also known as DDR2-533) RAM at 333Mhz. I'd guess this is to improve performance by matching the frequency of the CPU's FSB, but I'm not really sure. It could also be to lower power requirements.
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Addicted to MacNN
Join Date: May 2001
Location: Atlanta, GA
Status:
Offline
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Will DDR2 work on the 1st gen PowerBook 1.67?
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- MacBook Air M2 16GB / 512GB
- MacBook Pro 16" i9 2.4Ghz 32GB / 1TB
- MacBook Pro 15" i7 2.9Ghz 16GB / 512GB
- iMac i5 3.2Ghz 1TB
- G4 Cube 500Mhz / Shelf display unit / Museum display
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Forum Regular
Join Date: Aug 2002
Location: Atlanta, GA, USA
Status:
Offline
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I don't believe ddr2 memory will work in an earlier pb.
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MBP C2D 2.16Ghz 15" Matte, 2GB RAM
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Addicted to MacNN
Join Date: May 2001
Location: Atlanta, GA
Status:
Offline
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- MacBook Air M2 16GB / 512GB
- MacBook Pro 16" i9 2.4Ghz 32GB / 1TB
- MacBook Pro 15" i7 2.9Ghz 16GB / 512GB
- iMac i5 3.2Ghz 1TB
- G4 Cube 500Mhz / Shelf display unit / Museum display
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