Hello I have an Early 2006 iMac 4.1 and I want to up grade the ram. As I understand 2GB is the maximum that I can have. Currently I have 1GB, 2x512MB. As I also understand the iMac has one stick of ram soldered onto the logic board and there is one slot available to upgrade. My question is, is it possible to install a 2GB stick in the upgradeable slot and therefore get the max ram usage out of the machine. The iMac would then have 1x512MB and 1x2GB. I know I won't get more than 2GB of ram but I am wondering if a 2GB stick would work or not. My other option is to install a 1GB stick but that would only be 1.5GB ram in total. Any help would be greatful Thanks!