I did a 24hour prime95 & 8hour OCCT. Feels rock solid - I had to crank the voltage to a little less than 1.4 to stabilize it due to my high VID.
310 FSB x 10 Multi = 3.1ghz with a 1:1.2 ram ratio (i could probably tighten this)
I'm using 2 x 1gb PC6400 corsair XMS2 ram with stock timing. I think its 5-5-5-12 but, to my knowledge (and i haven't tried yet..) im not sure if the msi p35 board can adjust memory timings.
I have 4 x 1gb sticks of PC8200 that I might try swapping with to see if I can push it any further.