When Apple unveiled the redesigned 24-inch iMac in May, it reported that it had shortened the computer’s logic board to make an all-in-one desktop wafer-thin.
What it didn’t tell us was that it had shrunk everything else Down so much that the iMac was essentially half empty inside.
The revelation comes from iFixit, whose engineers tear up the latest iMac to see what makes it. And surprisingly, the operation revealed large areas with no component.
Along the bottom of the machine – still in the occupied space of the larger, older “chin” – is a super-small logic board, with an Apple-designed M1 chip, storage modules, and various components such as Wi-Fi and Bluetooth modules. Flanking the board are two small fans, which surround themselves with the iMac’s new speaker system. Again, this emphasizes how important the lower chin is to the design for the iMac to function.
Above the logic board are two large, mysterious metal plates, which have been speculated to be iFixit speaker chambers. And that’s about it.
Why is iMac so devoid of components? Well, it all comes down to the M1 chip. One of the main reasons Apple switched from Intel processors to their own chips was efficiency – ARM chips such as the M1 run far cooler than Intel’s own offerings, meaning they had better run Very little vigorous cooling is required.
In the new iMac, this is most evident in its super-slimline 11.5mm profile. Since it no longer needs a heavy fan system, the entire machine is basically on diet. Yet Apple clearly did not want to cut the display size (in fact, thanks to the low bezel, screen size actually increased this year). This creates an interesting situation: a large display with very little behind it.
There were some components, including a large metal plate, Magic Keyboard’s Touch ID sensor, speakers, and two unknown circular modules, which iFixit promised to test at a later date. The website said that it would also give a repeatability score for the iMac at the same time.