Hello, I'm now to the forum,and I find it quite cool also the site. So to the question, I have one old notebook : Acer Aspire 3613 and it has two memory sticks(2x256 DDR2 @ 667MHz). I want to add more,and to replace the old ones.But i don't know what is the limit or is there any?I was thinking of 2x1 GB @ 667 MHz. Is it possible , can this notebook have this amount of memory. I would be very grateful for every answer.