Jonny, my Maximus Formula is now stable @ 450MHz FSB! I've run the OCCT Beta 1.2 Auto 30min test with it 4 times, as it's more of a blend test. And I've run an hour long 1024MB test on it...get this...with my window closed, so case temp of about 27*c and the North Bridge didn't break 50*c!!!

I finally achieved this by using the Anandtech settings for 450MHz, and they worked right off the bat!!!

I'm going to save this OC Profile now and push higher. I'm idealy looking for either 435x9 for 3.915GHz or 475x8 for 3.8GHz...

I'm loving this board again now, seems (touch wood) rock solid stable with these bios settings!!!