Running more RAM than motherboard is set for opn Mac g4 ppc mdd Tags: Memory RAM Motherboards Macintosh Last response: October 19, 2011 2:01 PM in Memory Share johnnyace1971 October 19, 2011 11:49:19 AM im curious what would happen if i upped the ram from 2.0g to 2.5 g on my powermac g4 mdd. apparently the motherboard can only go to 2.0g and i was wondering if it would hurt it going up the extra .5 or help, or do nothing at all. More about : running ram motherboard set opn mac ppc mdd COLGeek a b } Memory a c 222 V Motherboard October 19, 2011 2:01:14 PM You would likely see no difference whatsoever, good or bad. m 0 l Can't find your answer ? Ask ! Publish Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !