Not possible in bios to put flash as primary boot, so had to launch its booting from bios manually and quickly turn off keyboard/monitor/mouse ))
Unfortunately can not play some music from live flash to check clicks issue I had with dac, as no music library is available on image flash.
Should I install OS to play some music or...?
Bad: dac connected to PC start whistling like ultra short radio waves. After some times amplitude of whistles is decreasing untill total silence. The same sound was if I plug in DAC at loading my normal OS. But it was not the case when dac was plugged after booting my OS and HQPlayer started.