For me, 200 bclck gives me a nice round figure of 800mhz for my RAM (which is rated at 1600mhz).

Factotum: I'll try and play with the CPU VID special add to see if it makes a difference to my OC (I'm currently using CPU VID control).

Almost stable for 8 hours of prime at 210x21 for 4410mhz (with HT on). 1 thread decided to die at 1hr 40m. The other 7 made it.......... GRRRRRRRRRRRRR