Unfortunately, iFixit described the process as an “exercise in disappointment,” noting the iMac’s new thinner design introduces new hurdles for repairability. Most notably, the device’s glass and LCD are now glued directly to the iMac’s frame, while accessing the RAM, CPU, and hard drive will now mean having to remove the entire logic board:
The late 2012 iMac 21.5″ — code-named EMC 2544 — is an exercise in disappointment for us. We were quite worried when we saw that super-thin bezel during Apple’s keynote, and unfortunately we were correct: the glass and LCD are now glued to the iMac’s frame with incredibly strong adhesive. Gone are the lovely magnets that held the glass in place in iMacs of yesteryear.
A few things noted in iFixit’s highlights: a new rubber housing that “dampens the vibrations from the spinning hard drive,” a new single fan layout, dual microphones, and a 5mm thinner LG made display. Those are some of the highlights of Apple’s new design, but iFixit is scoring the new iMac as a 3 out of 10 (down from 7 last year) due to the many issues with repairability. Here are just a few: