How to upgrade RAM / Memory on a 2010 iMac Core i3 i5 i7 (21.5in & 27in) - YouTube
OWC Performance Upgrades for iMac 2010
iMac RAM Models 11.3 (i5 and i7 only) to 12.2 (8GBx4) | MacMemory.com
2009 imac memory - Newegg.com
How To Upgrade RAM in a Mac | Macworld
Install memory in an iMac - Apple Support
iMac RAM for Model 11.2 to 12.2 | DDR3-1066MHz | 4GBx2 | MacMemory.com
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Installing additional SSD in Mid-2010 27" iMac
What to do when your iMac won't turn on?
16GB -2x8GB Memory Ram Upgrade for 27" Apple iMac-11.3 Core i5 3.6GHz Mid 2010 | eBay
iMac Mid-2010 27 inch (A1312) SSD and RAM disassembly and upgrade - Much FASTER! - YouTube
Timetec Hynix IC 8GB Compatible for Apple DDR3 PC3-8500 1067MHz /1066MHz SODIMM Memory Upgrade for MacBook 13 Mid 2010, MacBook Pro 13 Mid 2010, iMac 27Late 2009, Mac Mini Mid 2010 (8GB) - Walmart.com