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Old Jul 11th, 2008, 04:24 AM   #1
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Macbook Pro RAM help

I'm thinking of upgrading my Santa Rosa MBP's RAM. CanadaRAM's guide on Macrumors mentions that some Penryn MBPs are able to see 3GB under Boot Camp; does this mean Santa Rosa MBPs will be able to use even less? Is the fastest RAM that the Santa Rosa MBP can use DDR2-667 MHz? Is there any disadvantage to using "value" RAM?

Is there a brand/model of RAM that is known to work well with the MBP? I am seriously considering the Corsair ValueSelect RAM (the Macbook is specifically mentioned in Futureshop's description) but some Macbook/Pro users in an old thread here claimed they experienced kernel panics with it...any thoughts?

Thanks for any help.

Last edited by powz; Jul 11th, 2008 at 04:44 AM.
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Old Jul 11th, 2008, 05:42 AM   #2
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1. I think the Santa Rosa MBPs are only able to see "up to" 3.3GB of RAM as well.

2. The DDR2-667 is the ONLY ram the SR MBPs can use, so yes that's the fastest.

3. Yes, there can be potential disadvantages in using "value" RAM. Usually, that term means "this RAM failed the quality test at its factory, but it's probably okay maybe."

You really should be talking to our resident expert on all things RAM, the poster called CanadaRAM who is in the business. He has a stellar reputation here. Send him a PM (assuming he doesn't post something here himself in the next few hours).
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Old Jul 11th, 2008, 01:11 PM   #3
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Thanks for the info!
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Old Jul 11th, 2008, 02:41 PM   #4
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I have a Santa Rosa MBP and recently put in the 4GB Corsair Low Latency kit ...
Welcome to Corsair :: Mac Memory Product Information

I see NO indication that the SR MBP only uses 3.3GB. Attached is a screenshot showing the About This Mac screen showing all 4GB. Activity Monitor shows all 4GB too.

I personally tend to stay away from "value" RAM.
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Old Jul 11th, 2008, 03:24 PM   #5
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Quote:
Originally Posted by chas_m View Post
1. I think the Santa Rosa MBPs are only able to see "up to" 3.3GB of RAM as well.
Wrong. My Santa Rosa MBP sees all 4G of RAM.
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Old Jul 11th, 2008, 03:39 PM   #6
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I used this:

SIG Electronics, PC Hardware : Computer Memory : OCZ Computer Memory, OCZ 2GB PC2-5400 DDR2 SODIMM

And my Santa Rosa see's all 4GB..
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Old Jul 11th, 2008, 04:38 PM   #7
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Quote:
I have a Santa Rosa MBP and recently put in the 4GB Corsair Low Latency kit ...
Welcome to Corsair :: Mac Memory Product Information
Thanks, I'll look into those. Where did you get yours from?

Quote:
Wrong. My Santa Rosa MBP sees all 4G of RAM.
I think chas_m was responding to my question about how much RAM I can use under Boot Camp (Vista 32 bit).

Quote:
I used this:

SIG Electronics, PC Hardware : Computer Memory : OCZ Computer Memory, OCZ 2GB PC2-5400 DDR2 SODIMM
Thanks for the link. I noticed that it's listed as "PC2-5400". Is there any difference between PC2-5300 (as listed on the MBP specs page) and this designation? I've also seen "PC-5400" (sans "2") -- same thing again?
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Old Jul 11th, 2008, 09:17 PM   #8
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PC2-5400 and PC2-5300 are the same thing - 667 MHZ RAM. it's all marketing language.

Corsair has 2 series of RAM -- the VSxxxxx series is their generic RAM, the VSAxxxx series is their Apple compatibility guaranteed RAM. The generic VS may work fine, but when you ask Corsair they'll tell you the VSA is what they support in Macs.
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Old Jul 11th, 2008, 11:13 PM   #9
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Old Jul 11th, 2008, 11:14 PM   #10
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I think chas_m was thinking of this:

From the CanadaRam website:

"Macintosh MacBook Pro Core2Duo intel 2.16 GHz 15" , 2.33 GHz 15" and 2.33 GHz 17"

Two sockets, can take 1 x 1 Gb + 1 x 2 Gb for 3Gb total. With 2 x 2 Gb, only 3.3 Gb or less is usable by the OS"


powz, I don't know if this refers to your machine or not.
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