I recently ordered some DDR sticks for an older system I have. It has a DDR1 board, which already has 2x512 sticks fitted, and two empty slots.
I was wanting to get it to 2 GB, but due to the prohibitive cost of DDR1, I ordered another 2 512's, rather than replacing what I currently have with 2x1 G/b. The retailer made an error though, and sent me a 1g/b and a 512, rather than 2x512's, but due to the cost of shipping has said that I can keep them if I wish.
So... what I'm wondering is, would I be better off running 4x512 (in dual channel matched pairs) or a pair of 512's, another 512 and a 1g/b ? In other words will having 2.5 g/b unmatched be better or worse than 2g/b of matched 512's ?
Sorry for rambling and such a noobie question, and I very much appreciate any advice offered !