Finally got round to getting my UT P45 up and running today. It's the same cpu i had in the P35 in my sig, only using 4x1gig of OCZ PC9600 Flex instead of 2x1gig. On the P35, 2 sticks were running at 510x10 on the 5:6 divider putting the ram at 612fsb. As you can see from the screenie below, going at 556x9 at the moment.