There a numerous types of RAM and I just want to get a better understanding about RAM and overclocking. For instance there is 266 Mhz to 500 Mhz DDR RAM. Now what does that mean for overclocking. If you plan to overclock the FSB from 200 Mhz to 240 Mhz would that mean that 266 Mhz RAM would be sufficient. And if not, then why does RAM have 266, 333, 400, etc Mhz to it. And how do ratios affect RAM. I understand that 1:1 is the most ideal, but is it bad to have 1:2 or 4:3?