I currently have 3 x PC100 128 and 1 PC133 = 512mb in my G4 Power PC 350 Mhz. I purchased 2 PC133, 512mb each. When I replaced 2 of the 128's and booted up and went to System Profiler it said the slops were "empty". Now question, does this mean they are no good? are they in the wrong slots? or...