This was written by The world famous Archer, and Mod candidate. It may be helpfull.
Just to let you understand why exactly getting faster ram will help you overclock better, I want to try and explain the cpu ram relationship.
Your base FSB is 133Mhz, and your RAM's actual bus speed is 133Mhz, this gives you a 1:1 ratio. When you increase the FSB, the memory bus also increases. So since you are running FSB of 145Mhz your RAM is also running 145Mhz. Now remember as your FSB increases so is your RAM and your RAM is going to hit it's Max overclock at one point (What your max OC on your is something I couldn't tell you).
When your RAM hits it's max OC, your FSB is going to be limited to as fast as your RAM will run. This is the point where poeple talk about running dividers such as 3:2, 5:4, etc, so that the RAM will actualy run slower than the FSB allowing you to increase the FSB but also limiting performance. I will not get into dividers right now.
Faster ram will let you increase the FSB until it gets up to the RAMs rated speed. If you get the PC3200 you will have atleast 67Mhz of headroom because it's rated speed is 200Mhz, if you get the Pc2700 you will have atleast 33Mhz of headroom because it's rated speed is 166Mhz.
Example
"You may or may not be able to get the FSB up as high as these examples!"
with PC3200 you could get the FSB up to atleast 200Mhz
with PC2700 you could get the FSB up to atleast 166Mhz.
Please send any rep points to Archer for this info!!!