I didn't really know what to title this thread. I have a couple of questions, one for my own personal knowledge and another leading from that. 1) What limits the amount of RAM that a computer can hold? I know there is the physical limit of slots, but what else limits the amount of RAM? 2) Is it possible to *hack* (i don't like that word) or modify a computer in some way to allow it to take more RAM? So to hypothisise, i have a MBP CD 2GHZ 1Gb RAM 80GB HD. Now on the fact sheet, it says the maximum RAM you can put in is 2Gb, but would it be possible to put more in? By using 2Gb RAM cards or some other combination. I know nothing about this side of computers, so if someone could explain it simply that would be really great. Cheers.