Hey,
For the P5E on the X38 chipset there is an interesting thread at XS. I mentioned this thread in a different thread here about the Maximus/Rampage formula. The thread is about the formula boards but you're going to want to scroll a bit down in post 1.
If you're not following, just click the link and scroll a bit down ^^
The Maximus Formula Thread - Help/OCing/Guide/Rampage conversion - XtremeSystems Forums