Ram configuration

[Dolphin]

Greetings,

at the moment I have on my motherboard 1gb of memory (2 512mb modules). Since I wish to expand the memory to 2gb, I wish to know if it is better to simply add one 1gb module (512+512+1024=2048) or to eliminate the 512mb modules and use 2 1gb modules (1024+1024=2048).

Thank you.

[EvilGun]

If you want to use it in dual channel mode, 2x1024 is the only option.

[Dolphin]

I forgot to say, I don't intend to use the dc mode, because it's too instable and the increase in performace is ridiculous (I've already tried it).

That said, which configuration is better?