How to Upgrade iMac RAM (20" and 24" Aluminum): EveryMac.com
Install memory in an iMac - Apple Support (SG)
iMac Intel 24" EMC 2267 Repair - iFixit
Apple iMac 24-inch, Early 2009 - 2.66GHz Core 2 Duo Memory RAM Upgrades - FREE Delivery & Guaranteed Compatible | Mr Memory®
Someone gave me this unwanted Mac, anyone know if you can upgrade the graphics cards on these ? Keep seeing conflicting information it's a 24" early 2009 imac : r/mac
New 8GB 2X4GB Memory SODIMM DDR3 1066 Apple iMac Core 2 Duo 2.66 24" Early 2009
4GB Team High Performance Memory RAM Upgrade Single Stick For iMac “Core 2 Duo” 3.06 24-Inch (Early 2009) MB420LL/A iMac 9,1. The Memory Kit comes with Life Time Warranty. at Amazon.com