Alex, Even thought the 1.5 GB limit is often quoted for G4 machines, you'll note that the early AGP G4 had four DIMM slots, and will address a full 2 GB (in OS X only) if fully populated. So has anyone actually tried to install a 1GB DIMM in their G4? Rick ----------------------------------- "The sixties were good to you, weren't they?" -- George Carlin --