how to upgrade iMac early 2009 SSD and RAM - full class - YouTube
iMac G3: The Macintosh That Saved Apple – 512 Pixels
iMac RAM for Model 9.1 | Early Mid 2009 | DDR3-1066MHz | MacMemory.com
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book, Mac Book Pro, iMac, Mac Mini (Late 2008, Early/Mid/Late 2009, Mid 2010) SODIMM Memory MAC RAM Upgrade