Upgrading/Replacing the Memory in a Late 2009 iMac
Uploader Comments (OWCmacsales)
All Comments (37)
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I recently got final cut pro x for my lowest end late 2009 iMac, and it runs kind of slow. Uses 1.5 of my 4gb of RAM!! The computers also not the fastest after Lion. This should help if I upgrade it to 8. No? SO EASY(:
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Thanks so much! This vid tutorial really helped a lot:)
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I just upgraded my 2011 21.5 iMac with OWC memory but pushing it in was pretty tight, is this normal? my computer is up and running and showing 8GB right now though. Just wanted to check because in the video the memory seems to snap much easier than it was for me. The memory that came with it seemed to snap a little easier also. - Thanks
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@MrZeJohn That ram should be compatible as long as its 204-pin
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i wish the narrator would do an audiobook, i could fall asleep to his voice
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hi, is the Kingston Apple 8GB Kit (2x4GB Modules) 1066MHz DDR3 SODIMM iMac and Macbook Memory (KTA-MB1066K2/8G) compatible with this late 2009 imac?



The Late 2009 model iMacs can accept up to 16GB of RAM
OWCmacsales 1 month ago
hey, in order to boost the memory, can i just insert 2 more memory sticks (that complies with the requirements) and not replace the 2 that are already in there and add another 2 more as shown in the video?
Thanks!
zeewhy1996 10 months ago
@zeewhy1996 As the video is intended as a learning tool, we show how to both remove and install memory in the iMac. If your iMac came with only the two base modules and you're looking to just add two more modules, you certainly can do so without removing the original memory.
OWCmacsales 10 months ago
Like a dozen others, OWC starts at the wrong place, therefore if things work out Okay, it's an accident, especially or 4-memory slot iMacs. Should have started SHOWING the 'Memory' on "About this Mac", THEN the improper mixing of 1, 2, and 4 Gig modules can be avoided by explaining proper "pairing".
ChasFAdams 1 year ago
@ChasFAdams I am sorry, but you are incorrect twofold in your comment. 1) The iMac Late 2009 can use 2 GB or 4 GB RAM SO-DIMMs of 1066MHz DDR3 SDRAM in each slot - 1GB modules should not be used. 2) these machines do not require "pairing" of the memory, thus it was not mentioned in the video.
OWCmacsales 1 year ago 3