Ok. When you install ram in a G5, it is NOT like the old power macs. The olds ones were like this 1|2|3|4|5 1|2|3|4|5. The new PowerMac G5s go likes this 4|3|2|1| 1|2|3|4. See the difference. The olds one used to start from the left (or top) and went to the bottom (or right). The G5s go from the inside, and work it's way outside. I now have 3GB on the system, with 2 more on it's way. Granted, I will only have 4.5GB, but that's because I had to give up 2x 256 to make way for the 2x 512 I just put in. So it goes like this, 4x 512, 2x 256. two of those 256s will be taken out and replaced with 2x 1GB
