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tommy0614

macrumors member
Original poster
Jan 7, 2013
52
0
I have the new 27 iMac with 3.4 processor. I want to install four (4) sticks of Crucial ct3650282 ram for a total of 32. Is this the correct Crucial part number? Thank you.
 
I didnt want to start another thread so I thought I could bump this.

I want to buy the new iMac 21.5 inch 2.9ghz.
upgraded to 3.1ghz.
upgraded to fusion drive.

3.1GHz Quad-core Intel Core i7, Turbo Boost up to 3.9GHz
8GB 1600MHz DDR3 SDRAM - 2x4GB
1TB Fusion Drive
NVIDIA GeForce GT 650M 512MB GDDR5
Apple Magic Mouse
Apple Wireless Keyboard (English) & User's Guide
Accessory Kit

How do I add memory without spending the extra $200 on apples website.

Lets say I want to have 16gb or 24gb of memory.

Thanks
 
21.5 does not have user accessible ram ports like the 27
either order from apple or open up the imac yourself and i believe there's guide for that on google

I didnt want to start another thread so I thought I could bump this.

I want to buy the new iMac 21.5 inch 2.9ghz.
upgraded to 3.1ghz.
upgraded to fusion drive.

3.1GHz Quad-core Intel Core i7, Turbo Boost up to 3.9GHz
8GB 1600MHz DDR3 SDRAM - 2x4GB
1TB Fusion Drive
NVIDIA GeForce GT 650M 512MB GDDR5
Apple Magic Mouse
Apple Wireless Keyboard (English) & User's Guide
Accessory Kit

How do I add memory without spending the extra $200 on apples website.

Lets say I want to have 16gb or 24gb of memory.

Thanks
 
Similar question, didn't want to open a new topic either:

Is this RAM the best option for my Apple iMac 3.2GHz Quad-Core Intel Core i5 27-inch (living in the Netherlands):
http://www.crucial.com/eu/store/mpartspecs.aspx?mtbpoid=0B20DC3CA5CA7304

Can I just place these into the empty slots of the iMac, to make a total of 24GB.

Yup, you should be able to just pop those in the empty slots for 24GB. They are CL11 so you'll be fine. Just make sure you don't mix CL9 with CL11 (which is stock), because some people have had issues with running CL9 and CL11 together, where it causes the RAM to only run at 1333MHz rather than 1600MHz. I really like Crucial RAM, it's quality, made in America, they guarantee it, and make it easy as hell to find the right RAM for your system.
 
If you're replacing all four of them, you might as well go with the Kingston HyperX Plug'n'Play, which are faster than the stock RAM and the Crucials.

When you say faster than crucial's, how much faster, and when loaded out at 32GB on the new iMac, are we talking that much of a difference.
 
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When you say faster than crucial's, how much faster, and when loaded out at 32GB on the new iMac, are we talking that much of a difference.

cl9 vs cl11 means 2 nanoseconds faster... i think i saw some benchmarks showing less than 100 points in geekbench... might not be worth the extra cash between 4 sticks of CL9 vs 4 sticks of CL11...
 
cl9 vs cl11 means 2 nanoseconds faster... i think i saw some benchmarks showing less than 100 points in geekbench... might not be worth the extra cash between 4 sticks of CL9 vs 4 sticks of CL11...

CL9 vs CL11 means that it takes 9 or 11 clock cycles for the data to be ready to be read or written. At 1600MHz (=cycles per second), that comes out to 20.8% more accesses, or bandwidth as it transfers the same amount of data, but 20.8% more often per second.

AnandTech has real numbers on that, along with an in-depth explanation how this stuff works.
IGP%20Results.png
 
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If you're replacing all four of them, you might as well go with the Kingston HyperX Plug'n'Play, which are faster than the stock RAM and the Crucials.

It says it's 240-pin RAM, doesn't the iMac take 204-pin RAM?

NVM, just looked it up on newegg.
It looks like it's wrongly listed on amazon.
 
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