Saturn, 533 FSB is a big ask, but hey, why not try.

If you fail, just set 444fsb (easy on low volts) and use the 9 multi for the CPU and use the 5:6 divider on the 333 strap to get your ram at 533.

This should be a super 24/7 overclock.

If you are still serious about 533, then I would suggest using uneven clock skews, perhaps increase cpu to 300ps and leave NB at 200ps. This might dial your fsb back into trim - it worked for me albeit on a quad.