Specifications

First Steps
Remove display panel, fan, hard drive, hard drive cable, chin strap and right speaker.
Loosen power supply.
Memory Module Removal
1. Remove logic board and remove memory modules by pressing the side tabs outward.
2. Pull memory module out after it releases from the tabs.
Memory Module Installation
1. Align memory module and insert.
iMac (21.5-inch, Late 2012) Memory Specs
Default configuration: Two (2) x 4GB modules (8GB total memory)
Memory type: 1600MHz DDR3
Configurable to 16GB
More information can be found in Apple Support article HT5523.
Memory Modules: 27"
Important
Always shut down the iMac and remove the power cord before installing memory.
First Steps
1. Lay computer face down on a clean, soft cloth or towel.