As I already mentioned my E8500 (Q816A678) needs 1.376V for 4037 GHz (9,5x425). My CPU FSB 1.2V and nForce SPP 1.4V. CPU FSB is actually CPU VTT. I'm thinking of trying 8x500, but I guess I'll need higher CPU FSB voltage for that. How high for 24/7 is good to go with CPU FSB? In my BIOS settings 1.20V is green while everything over that is in red. I'm aksing 'cause I read that high CPU FSB voltages can kill CPU even before than voltage over 1.4V for vCore...