Eleanor SpeedGT: You had soc. 775 or 478?
Mihajlo: You could buy the fastest 478 (if you found one), but I doubt it will be equal to some mid range soc 775 CPU
I think that thos two will work in dual, but the third will be running alone. Anyway, in toms hw was article about it. There were really small differenc between single and dual channel. But they were using ddr2.