I've been wondering this myself. Especially the wired memory....
Looking at the "top" details in terminal I notice that where I thought I always had about 100-150MB RAM free, it actually details like:
I am reallly curious as to what 76M wired memory means?
as I'd say it has 512 wired.
Why does the inactive amount stay so high? And/or what controls the active / inactive ratio. Keeping an eye on it, it doesn't really change???
I launch additional applications and it hovers around the same numbers.
-- Does a G5 stay at this odd ratio of inactive memory when you add another 512 or 1GB?