Eric I just check out "Everymac.com" (it's a great ref site - bookmark it if you haven't do so before) and you got three slots for 1.5 GB - just like my QS! other wise I don't know what else to tell you - must be a fluke! Rick =========================================== --- Eric Buczynski <emaxxx4 at warpmail.net> wrote: > Hi all. I have a G4 Digital Audio upgraded to 1.2 > ghz, and RAM maxed > out at 1.5 GB. There's something that's been > bugging me for a > while. I know that this Mac only has 3 RAM slots, > yet when I go to > the system profiler and check the memory heading, it > shows a 4th > memory slot as being empty. DIMM slots J21, J22, > and J24 show the > 512MB sticks, but then it shows DIMM3/J24 as being > empty. Is this a > fluke at all or is there a way to tap into this? I > thank all who > assist me on this and I apologize for asking if this > question has > been answered before recently. > > Eric Buczynski > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 > > Listmom is trying to clean out his closets! Vintage > Mac and random stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 >