iMac | 2.66 GHz Core 2 Duo | 20 Inch | Early 2008 - Techable.com
iMac 20-inch (Early 2008) Core 2 Duo 2.4GHz - HDD 250 GB - 2GB | Back Market
Install memory in an iMac - Apple Support
CMS 6GB (1X4GB) & (1X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.4 20-Inch Early 2008 - B117 at Amazon.com
Apple iMac 20-inch Early 2008 Technician Guide Service Manual | eBay
Install memory in an iMac - Apple Support
Memory Upgrades for Apple iMac 2008 - Up to 6GB
20-Inch iMac (Early 2009) Hard Drive Installation Video - YouTube
parts-quick Memory Module 4GB 800MHz DDR2 (PC2-6400) - 2x2GB SO-DIMMs for Apple iMac Intel Core 2 Duo Early 2008 20 inch 24 inch and White MacBook Mid 2009 13 inch at Amazon.com
How to Upgrade the iMac 20-Inch (Early 2008)
CMS 6GB (1X4GB) & (1X2GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.4 20-Inch Early 2008 - B117 at Amazon.com