Question on overclocking for P4C800-E Deluxe

[sdaccord01]

Hi, I have some PC3200 RAM and I have a question on the memory dividers. I understand that 1:1 is 400mhz, 5:4 = 320MHz, 3:2 = 266 MHz, so when I am overclocking my RAM to achieve more FSB speed (hence more CPU speed), even though my PC3200 RAM is 400MHz, is it correct that I lower the RAM freq to 320MHz to increase FSB to get a 5:4 ratio? When I do this, does that automatically increase the RAM freq to something higher than 320MHz even though it is set at 320MHz for the RAM freq?