Originally Posted by Skeet 
Read the first part of the guide, then read the ASUS P5 section.
Set up the BIOS as described with the multiplier at 266 which is stock.
Set your memory timmings and VDIMM to what your memory supplier suggests, don't leave it on Auto.
Once you have done that, run ORTHOS for 8 hours plus to check stability.
Then, where the FSB says 267, select it and just enetr what you want, say 333.
As you have not set your memory to manual, it will auto adjust it to be 1:1, so with FSB at 333 your RAM will run at 667
The divider etc, is in teh JUmper Free Configuration area.
Just read the thread mate.
If you set the FSB to 400, it will set the ram to 800.
But again, read the thread and do as it says.
Thanks mate, am not a complete noob just wanted to know how to set the divider to 1:1. I think you answered it by just leaving it at Auto and then setting it to ddr-800 when I go over 400 FSB