thanks a lot. Of course I tried 191x21, without improvements. Today i try to find max bclk.

What is VTT Voltage for? Tested the latest beta yesterday too. I will max out this CPU, but i think i'll get a new one within 14 days. Is it possible that the board is causing these instabilities?

Can i fix multi to 21, the turbo multi. When there is only one core active, i've got multi 22, which may result in bluesceen.