Hvala na odgovoru. Evo, pronasao sam slijedece u manualu. "GA-K8NS Ultra-939 supports Dual Channel Technology. When Dual Channel Technology is activated, the bandwidth of memory bus will be double the original one,with the fastest speed at 6.4GB/s(DDR400) or 5.3GB/s(DDR333)." Ali nigdje ne pise eksplicitno da sa cetiri modula spusta frekvenciju. Still no clue....:-(