Buyer beware....October 8, 2008 I don't know if this RAM is any good because it doesn't actually fit in our PowerMac G5. I was a little wary because we've had trouble with upgrades fitting in the slots before, but this description does not indicate that it will not work in our version of the G5. We have one of the early releases (PowerMac 7.2, 2GHz dual core) which is what I'm assuming causes the problem.