How to Install RAM in a Mid 2010 iMac 21.5" & 27" Core i3, i5, i7 - YouTube
Install memory in an iMac - Apple Support
32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
Install memory in an iMac - Apple Support
iMac Intel 27" Mid 2010 EMC 2374 - used original spareparts for Macs
Apple iMac 27" - Mid 2010 Reviews, Pros and Cons | TechSpot
How to Upgrade Memory in a 21.5-inch or 27-inch iMac (Mid 2010) - YouTube
OWC Performance Upgrades for iMac 2010
Apple iMac 27" - Late 2010 Reviews, Pros and Cons | TechSpot
Apple iMac 27-inch (Nvidia GeForce GTX 675M) - Review 2013 - PCMag UK
A-Tech 16GB (2x8GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Install memory in an iMac - Apple Support
Harder, better, faster, stronger: A review of the 27-inch iMac | Ars Technica
Install memory in an iMac - Apple Support
How to Upgrade iMac RAM (21.5" and 27" Aluminum): EveryMac.com