The board works well wit just +0.3V on NB and VFSB, but I had the impression the board is more stable with the high voltage, while I cooled the NB with LN2.

Seeing 650+ MHz with just +0.,V, I am pretty sure, the board can do more than that, but the CPU is limiting here. Too bad I didn't try to run 1M with that setup. I only ran it once with 5.8 ish GHz single channel and CL5, but didn't even take a screenshot. Was way too slow on my messed up OS