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merkinmuffley

macrumors 6502a
Original poster
Dec 3, 2010
615
582
I have a 27 inch mid 2010 IMac with the 2.93 I7 processor, model identifier is iMac11,3. Current memory is 4x2 GB sticks and it's not enough.

I've called OWC - they claim I can put in 32 GB.
Called Crucial - they claim I can put in 16 GB.

Someone here must have one of these things and have done this. How much can I put in?

Is OWC or Crucial better in some way?

I found this Crucial 16 GB kit from Amazon, it says "notebook" in the description but I believe it will work in my iMac. Is this the memory to get?

Crucial 16GB Kit (8GBx2) DDR3L 1333 MT/s (PC3-10600) CL9 SODIMM 204-Pin 1.35V/1.5V Notebook Memory Modules For Mac CT2C8G3S1339M

Lastly, if I purchase the above kit, and want to leave in 2 of my current 2 GB sticks - which slots should this be put into?

thanks...
 
I have a 27 inch mid 2010 IMac with the 2.93 I7 processor, model identifier is iMac11,3. Current memory is 4x2 GB sticks and it's not enough.

I've called OWC - they claim I can put in 32 GB.
Called Crucial - they claim I can put in 16 GB.

Someone here must have one of these things and have done this. How much can I put in?
Your Mac supports 32GB. You can find specs on all Apple products, including maximum RAM:
 
Your Mac supports 32GB. You can find specs on all Apple products, including maximum RAM:

Odd, you say 32 GB. When I go to that Crucial Memory Advisor you suggested it lists 16 GB as the max.
EveryMac says 32 GB.

This is confusing.
 
I have a 27 inch mid 2010 IMac with the 2.93 I7 processor, model identifier is iMac11,3. Current memory is 4x2 GB sticks and it's not enough.

I've called OWC - they claim I can put in 32 GB.
Called Crucial - they claim I can put in 16 GB.

Someone here must have one of these things and have done this. How much can I put in?

Is OWC or Crucial better in some way?

I found this Crucial 16 GB kit from Amazon, it says "notebook" in the description but I believe it will work in my iMac. Is this the memory to get?

Crucial 16GB Kit (8GBx2) DDR3L 1333 MT/s (PC3-10600) CL9 SODIMM 204-Pin 1.35V/1.5V Notebook Memory Modules For Mac CT2C8G3S1339M

Lastly, if I purchase the above kit, and want to leave in 2 of my current 2 GB sticks - which slots should this be put into?

thanks...

Hi, running right now and running just flawlessly in my 27" iMac i7 late 2009 is
4 x 8.0GB 1600MHz DDR3L SO-DIMM PC12800 204 Pin from OWC.
32 GB but clocked at 1333MHz. The memory controller seems to max out at this. But I do have the feeling that the RAM is actually running at 1600MHz.
OWC RAM works very well.....just my experience:)
 
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