would i be able to buy 2 sticks of this ram http://www.ebuyer.com/product/72673 and use it togther?, or would i have to buy one that comes as a pair? DDR2 400mhz is the same ram that came with my system will DDR2 533 mhz RAM work with my comp?
Yes you can buy 2 and use them together. As long as your system does take DDR2 and not DDR1 (both are available @ 400MHz), then getting 533MHz DDR2 should be fine.
