Your G5 should have come with a hardware diagnostics disk. That disk has an RAM test on it that should let you mark memory problems off your list (yea or nay). On Aug 5, 2005, at 10:14 AM, Nick Scalise wrote: > The only other hint at the discussion boards was bad ram. I do have > 512MB of third party RAM in there... Unfortunately I don't want to > have to survive how many days with only 512MB to see if it happens > again.