4GB -2x2GB Memory Ram Upgrade Apple MacBook Pro 3,1 Mid 2007 2.4GHz 15" A1226
A1226 (EMC 2136). Your MacBook has two ram slots and the maximum upgrade is 6GB (4GB+2GB) . MACBOOK PRO DETAILS. INSIDE YOUR MACBOOK PRO. Core 2 Duo. Model Number. Release Date. 12 Month Warranty.