I understand the concept of memory, and how it is installed. I also understand the fact that computers "max out" in memory. My question is why? Is it because due to certain motherboards the processor can only hold so much memory because of its speed? Say if I wanted to add 1 gb of memory to a compaq presario 3000. would I be able to add the stick of memory, but it would fry the motherboard? Or is it even possible to fit the stick of memory into the slot on that certain motherboard? Please can anyone enlighten me?