I have a 2.4C and an Abit IS7 board.
With an OCZ PC3500 basic edition ram, I can do FSB 272, with memory ratio of 3:2. So the memory is at 181 mhz.
However, with a single or double stick of Corsair TwinX 3200LL ram, I cannot run at that setting, even though the memory speed is still well below the rated speed. The best I can do for TwinX is FSB 250, memory ratio of 5:4 (effective memory speed = 200mhz).
Can someone explain whats going on? Why does the ram do 200mhz and not 181mhz.
With an OCZ PC3500 basic edition ram, I can do FSB 272, with memory ratio of 3:2. So the memory is at 181 mhz.
However, with a single or double stick of Corsair TwinX 3200LL ram, I cannot run at that setting, even though the memory speed is still well below the rated speed. The best I can do for TwinX is FSB 250, memory ratio of 5:4 (effective memory speed = 200mhz).
Can someone explain whats going on? Why does the ram do 200mhz and not 181mhz.