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Old May 12th, 2015, 12:14 PM   #1
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What RAM for MacBook Pro 15" late 2008?

Since installing Yosemite, my old MacBook has been grinding slow, especially in the first ten minutes or so after waking, so I'm thinking I should add more RAM. Will my old machine handle 8 gig or ony a max of 6 gig, which Apple seems to recommend for my model? I'm asking as I'm finding only 2x4 or 2x2 gig modules for sale, and I gather that there are only two slots for RAM.

Also, can you recommend a brand? Apple's RAM seems to be a lot more expensive than others. I'm gaily assuming that it'll be easy to install myself, even though I've never opened the case on this machine.

Thanks
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Old May 12th, 2015, 12:30 PM   #2
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The late 08 is a Unibody macbook (pro). It supports max 8GB ram in a 2x4GB configuration. It uses PC3-8500, but i've successfully used PC2-10600 in my 09 13'' which uses the same 9400m IGP
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Old May 12th, 2015, 12:38 PM   #3
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Originally Posted by Luckysod View Post
Since installing Yosemite, my old MacBook has been grinding slow, especially in the first ten minutes or so after waking, so I'm thinking I should add more RAM. Will my old machine handle 8 gig or ony a max of 6 gig, which Apple seems to recommend for my model? I'm asking as I'm finding only 2x4 or 2x2 gig modules for sale, and I gather that there are only two slots for RAM.

Also, can you recommend a brand? Apple's RAM seems to be a lot more expensive than others. I'm gaily assuming that it'll be easy to install myself, even though I've never opened the case on this machine.

Thanks
According to MacTracker your late 2008 MBP 15" will accept 8gig of PC3-8500 DDR3 So-DIMM.

Any quality RAM that meets those specs will do.

Suggest canadaram.com as a source because they have always done well by me. They are Canadian so there is no farting around with border stuff. They are friendly and helpful.
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Old May 12th, 2015, 12:40 PM   #4
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Thanks, guys! That's really helpful.
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Old May 13th, 2015, 11:53 AM   #5
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Originally Posted by rgray View Post
According to MacTracker your late 2008 MBP 15" will accept 8gig of PC3-8500 DDR3 So-DIMM.

Any quality RAM that meets those specs will do.

Suggest canadaram.com as a source because they have always done well by me. They are Canadian so there is no farting around with border stuff. They are friendly and helpful.
Thanks for the shout-out, r

Just one point - Many RAM manufacturers have gone to building high density SODIMM (and DIMM) modules because they are cheaper to build. These will likely fail in the Macs that take DDR3-1066 and require low density modules. So not every RAM that meets the spec "PC3-8500 DDR3 SODIMM" will do.
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Old May 13th, 2015, 11:59 AM   #6
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Originally Posted by rgray View Post
According to MacTracker your late 2008 MBP 15" will accept 8gig of PC3-8500 DDR3 So-DIMM.

Any quality RAM that meets those specs will do.

Suggest canadaram.com as a source because they have always done well by me. They are Canadian so there is no farting around with border stuff. They are friendly and helpful.
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Originally Posted by CanadaRAM View Post
Thanks for the shout-out, r

Just one point - Many RAM manufacturers have gone to building high density SODIMM (and DIMM) modules because they are cheaper to build. These will likely fail in the Macs that take DDR3-1066 and require low density modules. So not every RAM that meets the spec "PC3-8500 DDR3 SODIMM" will do.
I stand corrected!

See what I mean about being helpful!?!?! Knowledgeable too!!!

This why when I order RAM (the few times I do it) I call up and ask rather than taking chances trying to figure out an online order....
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Old May 13th, 2015, 12:12 PM   #7
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Uh oh. I'll call first then. To complicate things, I've learned I'm wrong about the age of my machine. It's actually a 2007 model and will take only 6 gig of RAM, one 2 gig and one 4 gig module. Of course, buying a single module is the most expensive way to buy RAM, but that's what I'll have to do, if I can find a low density one.

I'd revert to Mavericks, if I had the choice, but I have to use Word 2011 – the first version that's stable on a Mac – and none of the Office programs run reliably on Mavericks.

Thanks again for your help. What would I do without you guys?
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Old May 13th, 2015, 12:26 PM   #8
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I'd revert to Mavericks, if I had the choice, but I have to use Word 2011 – the first version that's stable on a Mac – and none of the Office programs run reliably on Mavericks.
lol who told you that?
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Old May 13th, 2015, 12:27 PM   #9
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Originally Posted by Luckysod View Post
Uh oh. I'll call first then. To complicate things, I've learned I'm wrong about the age of my machine. It's actually a 2007 model and will take only 6 gig of RAM, one 2 gig and one 4 gig module. Of course, buying a single module is the most expensive way to buy RAM, but that's what I'll have to do, if I can find a low density one.

I'd revert to Mavericks, if I had the choice, but I have to use Word 2011 – the first version that's stable on a Mac – and none of the Office programs run reliably on Mavericks.

Thanks again for your help. What would I do without you guys?
PM sent. I have that RAM.
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Old May 13th, 2015, 12:34 PM   #10
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Broad: No one told me. I know from hundreds of bitter experiences how unstable Word is on a Mac pre the 2011 version and pre Yosemite, or it is the way I have to use the program. I'm loving how reliably it is finally behaving for me.
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