Vintage: Apple iMac 20-inch 2.26GHz Core 2 Duo (Mid 2009) 4GB RAM 160GB HDD | eBay
iMac (Early 2009) | Low End Mac
Late 2009 iMac RAM Upgrade - iMac (Late 2009) Memory Upgrade
Apple iMac 21.5" Desktop Computer Core 2 Duo 3.06GHz 4GB Ram 500GB Mac OS El Capitan MB950LL/A
Memory Upgrades for Apple iMac 2009 - Up to 32GB
iMac (27-inch, 3.06GHz Intel Core 2 Duo, Late 2009) | iGotOffer
iMac Intel 21,5" Late 2009 EMC 2308 - used original spareparts for Macs
iMac Intel 27" EMC 2309 and 2374 RAM Replacement - iFixit Repair Guide
How I kept my iMac running for a decade | Cult of Mac
iMac "Core 2 Duo" 2.0 20" (Mid-2009) Specs (Mid-2009 (Edu), MC015LL/A, iMac9,1, A1224, 2266): EveryMac.com
Late 2009, 27 inch iMac can use 32 GB of 1333 MHz RAM, beyond what Apple says - YouTube
iMac "Core 2 Duo" 3.06 27" (Late 2009) Specs (Late 2009, MB952LL/A, iMac10,1, A1312, 2309): EveryMac.com
How to Upgrade Memory in a Late 2009 21.5-inch or 27-inch iMac - YouTube
How to Upgrade the RAM in Your iMac
Should I upgrade my Intel E7600 CPU for an E8600 in my iMac 27" late 2009? - Ask Different
Apple iMac "Core i5" 2.66 27-Inch (Late 2009) Quad Core - Imagine41
iMac Intel 27" Late 2009 EMC 2309 - used original spareparts for Macs
iMac 21.5" 3.06GHz C2D/4GB/256GB/Late 2009 - MacEnthusiasts
iMac 27" 3.06GHz (Late 2009) | mac of all trades
Max RAM for my iMac 27" (late 2009) | MacRumors Forums
iMac | 2.66 GHz Intel i5 | 27 Inch | Late 2009 - Techable.com
Can the Late 2009 27" iMac handle 32GB of RAM? | MacRumors Forums
A-Tech 16GB (2 x 8GB) PC3-8500 DDR3 1066/1067 MHz RAM for MacBook (Mid 2010 13 inch), MacBook Pro (Mid 2010 13 inch), iMac (Late 2009 27 inch i5/i7), Mac Mini (Mid 2010)
Apple iMac "Core i5" 2.66 27-Inch (Late 2009) Quad Core - Imagine41
