Hey i just got 2 gigs for the new g5. I opened it up and there were two 256 mb sticks already in there on the inside ram slots. So i took them out and replaced them with the new 1 gig sticks and put the 256 sticks in the spot next to were they originall were i restarted and all it recogizes is the two gig sticks not the other 256 sticks. it shoulds say 2.5 gb. Any ideas??