You have dual channel 512mb RAM right now can you put another 2gb dual in and have two dual channel set ups running at the same time?
By dual channel 512, do you mean you have 512x2, or you mean
206x2. anyway, unless you're making your own computer, and not
running a laptop it is nearly impossible to have even 2gb, because
that would mean 1x2 which is already alot of money and everything.
they dont make 2gb cards all by themselves, you have to run two
cards.