you can double up
two 256 in slots 1&2, and a 512 in slot 3...........as the first two slots determine the first channel............and the third as the second channel........yet, most run in slot 1&3 or 2&3 with like ram............with 2&3 being preferred..........any designs on overclocking should lead to an increase in the quality of the ram to compensate...........yet, 3200 ram is what is necessary to operate at 400 fsb, that is if you are going to be running in sync.........don't give me that typo crap about the 3000+ not being available @ 400 fsb, read it and weep.......and, i tried to explain that it would have a different timing structure, as to push past the capabilities of the 3200+.....just the way amd cpus are, they do not benefit greatly from a jump to 400fsb, and can refer you to several benchmarking articles that concur.....you shortchanged yourself on the videocard...........of which i would apply the differential to have the 9800 .........even the 333 fsb 3000+ would outrun a 3200+ if overclocked.......dual channel will.......after you have flashed the bios proper ver. to rev...........it will say you are in dual channel on the POST screen............but, that's it for my help...........there is only so much i can stand