Upgrades ¶ 

You can cost-effectively upgrade a number of components in the iMac Intel 21.5".

  • Memory: If your iMac is still running with only the stock RAM, upgrading will provide a dramatic performance boost at minimal cost. Upgrading to the maximum of 16 GB (four modules) provides unmatched performance.
  • Hard Drive: 500 GB or 1 TB hard drives came standard with the iMac Intel 21.5". You can upgrade the drive up to 2 TB.

Identification and Background ¶ 

You can verify that you have a iMac Intel 21.5" EMC 2308 by checking the processor information through "About This Mac" in the Apple menu.

iMacs tend to look very similar, and it's important to know which machine you have before ordering any replacement parts.

The iMac Intel 21.5" EMC 2308 has multiple external and internal differences from 20" iMacs. Externally, the machine features edge-to-edge glass and an aluminum rear bezel. Internally, an LED display, more powerful video processing, and faster processors round out the impressive upgrades.

Additional Information ¶