Is it true that you cannot always just put in 4 sticks of regular 1 Gig ram on any motherboard (granted the motherboard supports 4 240 pin sticks)? You have to get special kinds of 1 gig memory (quite significantly more expensive) to make them register as 4 gigs and run properly? That otherwise, u can only really use 2 1 gigs or 4 512 mb sticks...