Just had my new parts delivered, (X1800XT 512/Hiper Type R 580/2x1gb GeIL).
Currently, I have 2x512mb samsung pc3200. Is it worth keeping hold of it, and putting in slots 3&4, with the geil in 1&2. Or will that actually make it worse?
Currently, I have 2x512mb samsung pc3200. Is it worth keeping hold of it, and putting in slots 3&4, with the geil in 1&2. Or will that actually make it worse?

I thought the above quote and others that i've read are trying to say that 4 x 512MB of RAM is slower than 2 x 512MB of RAM. 