those volts make a lot of sense
from what i've seen with 45nm chips it's really good to keep both VTT and VNB very close to maximise stability

I've been playing with both DDR2 and DDR3 boards. i've been using about ~1.4VTT and 1.55VNB on the DDR2 board to bench 640MHz 8M SuperPi >> had some issues with GTX280 past 620MHz FSB which was good for 3D .......

i haven't been able to do the same on this DDR3 board but this is certainly a lot of extremely useful info to try out i've tried up to 1.66vTT and 1.7VNB but it yielded no better results even on LN2.......but i think i am just not hitting the right mix on the DDR3 board just yet

however doing PL8 at such high FSB is not possible with the volts i was trying...particularly vNB so it's good to see you've been getting similar results that Jody(3oh6) has been doing in terms of supertight PLL and high VNB volts

supernice tweaking man supernice