Upgrade iMac Intel Core i3 CPU to Core i7 - iFixit Repair Guide
Apple iMac 27-inch Core i3 3.2GHz Mid-2010 (MC510LL/A)
A-Tech 4GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module