Hey all, newbie on here (already searched and couldn't find specifically what i was looking for) I have a 21.5 late 2009 imac, it came with the 3.06/3m l2 cache cpu and am looking to do an upgrade... possibly. And have some extra cpu's lying around, specifically the e8400's. If I am correct, the one currently in the imac is an e7600@1066 fsb and the e8400 is @1333 fsb. does anyone know if the mainboards in this model of imac will support the 1333 bus? Also do you know if it will support similar speed ram, or is that limited to 1066? I don't want to risk buying the 1333 ram if it may not work Any information is greatly appreciated.