Just stupid for me, after i try OC QX6850(ES) L712Axxx on SS and i can ran all bench at 4.0GHz 1.65V Vcore so i tried again to 4.1GHz it not stable and try try.. put Vcore to 1.7V not boot .... hmm how do it ???? and final i funny tried set Vcore to auto, DAMMM ! it boot and can ran PI 1M pass
QX6850(ES)@4.1GHz, 1.38V idle, 1.36V load, -40 ํC idle Temp.
ASUS P5W64 WS Pro