6GB -2GB+4GB Memory Ram Upgrade for Apple iMac-7,1 Mid 2007 2.0GHz Core2Duo 20"
Your iMac has two ram slots and the maximum upgrade is 6GB (2GB+4GB) . IMAC DETAILS. IMAC Identifier. INSIDE YOUR IMAC. Total Capacity: 6GB. Module Capacity: 2GB + 4GB. Core 2 Duo. CPU Model Number.