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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

New iMac Memory


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openside

 
Member Since: Nov 25, 2009
Location: South Wales
Posts: 2
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Mac Specs: MBP 15.4", 2.66Ghz, 8Gb; iMac 20" 2.4Ghz, 4Gb

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Hi All

First post here. I have recently handed on my old PC Notebook and got myself a MacBook Pro. Early next year I plan to change out my iMac for the new 27" iMac.

The question I have is this, having upgraded the memory in the MBP to 8Gb I now have 2 x 2Gb DDR3 memory cards available. Therefore if I get the 27" new iMac with 4Gb is the memory from the MBP compatible and therefore I can upgrade the iMac to 8Gb effectively for free?

Cheers
Simon
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Lifeisabeach

 
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Member Since: Sep 30, 2007
Location: Wilmington, NC
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Mac Specs: iMac i3 (mid-2010) + OS 10.9; TV 3; iPhone 5S; iPad 4

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Maybe. The current iMac "supports 1066 MHz PC3-8500 DDR3 SO-DIMMs."
iMac "Core 2 Duo" 3.06 21.5-Inch (Late 2009) Specs (Late 2009, MB950LL/A*, N/A, iMac10,1) @ EveryMac.com

You didn't specify exactly which MacBook Pro you have. The current 15" and 17" models "support 1066 MHz PC3-8500 DDR3 SDRAM", which is identical to the current iMac.
MacBook Pro "Core 2 Duo" 2.8 17" (Mid-2009) Specs (Mid-2009 17", MC226LL/A, N/A, MacBookPro5,2) @ EveryMac.com

So if your RAM came from the above model MBP, then it should be perfectly compatible with today's iMacs. Of course, the iMac may get refreshed with a different spec of RAM by the time you get one, which may make this moot.

EDIT: Doh! I overlooked how the iMac uses SO-DIMMS and the MBP does not. Sorry. They won't work.
http://www.kingston.com/newtech/ddr/ddrvssdram.asp


Please verify and include the exact model/year of your Mac and OS X version number (available from "About This Mac", then "More Info" on the Apple menu).
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bobtomay

 
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Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

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Wow, I hadn't noticed they'd changed all of the MBP's to SDRAM either.

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openside

 
Member Since: Nov 25, 2009
Location: South Wales
Posts: 2
openside is on a distinguished road
Mac Specs: MBP 15.4", 2.66Ghz, 8Gb; iMac 20" 2.4Ghz, 4Gb

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Quote:
Originally Posted by lifeisabeach View Post
Maybe. The current iMac "supports 1066 MHz PC3-8500 DDR3 SO-DIMMs."
iMac "Core 2 Duo" 3.06 21.5-Inch (Late 2009) Specs (Late 2009, MB950LL/A*, N/A, iMac10,1) @ EveryMac.com

You didn't specify exactly which MacBook Pro you have. The current 15" and 17" models "support 1066 MHz PC3-8500 DDR3 SDRAM", which is identical to the current iMac.
MacBook Pro "Core 2 Duo" 2.8 17" (Mid-2009) Specs (Mid-2009 17", MC226LL/A, N/A, MacBookPro5,2) @ EveryMac.com

So if your RAM came from the above model MBP, then it should be perfectly compatible with today's iMacs. Of course, the iMac may get refreshed with a different spec of RAM by the time you get one, which may make this moot.

EDIT: Doh! I overlooked how the iMac uses SO-DIMMS and the MBP does not. Sorry. They won't work.
Kingston Technology Company - New Technology - DDR vs SDRAM

The memory I installed in my MBP was 204 Pin SO-DIMM DDR3 2 x 4Gb. So hopefully that's the same. Otherwise I'll have to budget extra to up the memory.

My MBP is the latest 15" version running at 2.66, with replacement memory from Crucial.

Regards
Simon
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