quick memory question

[imverygifted]

so in an attempt to breath new life into my older computer (dfi nf4-sli dr) i just purchased 2x1GB GSKL F1-3200PHU2 memory. im upgrading from 2x512 ocz gold 4000vx memory. i was just wondering if i would get more performance running all of 'em together or just totally taking out the 2x512 of ocz. i know im going to have to change my timings and such because the ocz has tighter timings/ higher voltages. and im running vista.

thanks

 

[sutahz]

I would use 3GB w/ looser timings then 2GB slightly tighter timings.