In about a week I'm going to order 2x 512mb Ballistix 3200ddr for use on a DFI NF4 Ultra-D. But later on this fall, I plan on getting an additional 2x 512 Ballistx. I know I will most likely have to run it at 2T. For a total of 2gigs. Will having all four slots filled affect my 1:1 overclock? I'm going to be aiming for 240mhz FSB. Just thought I would ask. Thanks.