iMac (2007-2009) Memory Installation Video - YouTube
Got my parents on the M1 train today, all the way from the iMac circa 2007. Only going from 4gb to 8gb ram here but this is gonna be a big upgrade
Apple iMac 24-inch Mid 2007 2.4GHz Intel Core 2 Duo (MA878LL) – UNICOM, Inc.
CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac (Mid 2007) Pc2-5300 - A37 at Amazon.com
Used Apple A Grade Desktop Computer iMac 20-inch (Aluminum) 2.4GHZ Core 2 Duo (Mid 2007) MA877LL/A 2 GB DDR3 250 GB HDD 1680 x 1050 Display Sierra 10.12 Includes Keyboard and Mouse - Walmart.com
A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
A-Tech for Apple 4GB Kit 2X 2GB PC2-5300 667MHz Mac Mini iMac Late 2006 Late 2008 Mid 2007 A1208 MA589LL A1207 MA456LL A1200 MB138LL/A A1176 MB139LL/A Memory RAM at Amazon.com