I think I solve my problem after 2 weeks of fight with this mobo. Today I set voltages:

CPU: +150mV
VTT: 1.425 V
vDIMM: 2.4 V
vNB: 1.6 V
vsb: 1.5V
2nd vsb: 1.05V

vNB must be set to 1.6 to work with vtt=1.425 and vtt=1.425 is needed probally for higher vDimm.