Ok so my motherboard is a chaintech vnf4 ultra. And i also have 2x512 of kingston valu ram, and another 512 kingston in my old comp. now, first off, what is the placement to get dual channel? is it 1 in slot 1, and 1 in slot 3? or slot 1 and slot 2. also is it possible to stick in my third stick and have 1.5 gig of ram and still get dual channel? if so whats the placement? thanks