Please help me quickly set FSB: RAM!!! e6750 and P35-DS3L

[bs6749]

MOBO: GIGABYTE GA-P35-DS3L (Rev 2.0)
CPU: e6750 currently running at 400 MHz
RAM: 2x1GB Crucial Ballistix PC2 6400 (800MHz) currently at 480MHz 4-4-4-12 timings

I need help setting my FSB:RAM ratio but I can't figure it out on my MOBO. Currently the FSB:RAM is set at 5:6 but I want a 1:1, my only problem is that I can't remember WHERE I go to change it in the BIOS. I have seen it before but cannot figure it out now.........

Can someone please let me in on the secret....? (Pics would be nice if I get lost or don't understand what you are saying right away, but they are by no means necessary.)

Also, is it "BAD" that my memory is at the current timings/speed? I know it's rated at 4-4-4-12 at 800MHz but is anything going to be harmed if I don't change it to 400MHz right away? How far do you think I could push this RAM? I'd like to get my CPU up to 3.6, which I think is feasible. Right now I have the stock HSF on it but I do have a Freexer 7 Pro waiting to be opened along with Arctic Silver 5 (the fan went on sale after I put my build together and haven't changed it yet, but will most definitely before I try to go to 3.6).

 

[bs6749]

Nevermind...I figured it out and my RAM is running fine at 400MHz in a 1:1 ratio with the FSB.

I'm still wondering about the RAM and how far I can push it though. If I want 3.6 GHz I will need a FSB of 450MHz, so I will need to have my RAM multiplier set at 2.25? Does this seem right for a 1:1 ratio? Also, what timings can I expect to achieve with this RAM at that speed?