ddr memory question

[gregorio]

In my system now, I have a 256mb ddr card and a 512mb ddr card. I'm thinking of buying two 1gb cards. I have heard of having two cards with the same capacity doing something like 'dual channel'. Honestly never understood the concept. I was wondering, since I have 3 memory slots, would leaving the 512mb card be the best thing to do and thus have 2-1/2gb, or to just have the two 1gb cards by themselves?

[Therion]

You are correct, you're wanting to implement a dual-channel memory configuration. However, it sounds like this is not an option for you currently: Running memory in a dual-channel configuration requires four memory slots and a motherboard that specifically supports dual-channel. The fact that your motherboard has only three slots indicates it does not support dual-channel memory configurations.

This being the case, your best option would be to get two 1GB memory modules and place them in the two primary slots while putting the 512MB module in the last slot.