The difficulties encountered when upgrading the 2012 iMac 21.5″ model are well documented. In fact, with the particularly complex screen and logic board removal, professional installation is highly recommended. Fortunately, Apple has made upgrading memory a much easier endeavor in the 27″ model of the new iMac.
The 27″ model features a simple memory access port on the rear that ejects via a button above the power input. To remove the rear panel, just unplug the power cable and push the button above the power input. (Note: The button must be pushed in about 1/2″, so we recommend using the Newer Technology Toolkit “spudger” or a similar household item.) Once you have the panel removed, you are free to insert new memory.
So, the outcome to this is that based on the ease of install, when ordering a new 2012 27″ iMac, you should get it with the least amount of RAM installed at the factory. Why? Well, OWC offers some substantial savings versus the factory upgrades! Our 16GB upgrade costs less than half ($97.50) of what the same upgrade from Apple costs ($200). And if you’re looking to max-out your RAM, we also offer a 32GB option, which is about 1/3 the price ($195) of Apple’s offering ($600).
Of course, memory is only one of the things you can upgrade on a Mac, so we decided to take apart the iMac to see what else, if anything can be upgraded. There looks to be a run-of-the mill 3.5″ Hard Drive inside, and the new “stick” form factor SSD, similar to those in the MacBook Pro with Retina display. Further testing will need to be done to see if they can be upgraded with any 3.5″ SATA hard drive/SSD or an OWC Aura Pro for rMBP, respectively.