On Thu, Sep 01, 2016 at 09:00:14PM +0300, Slawa Olhovchenkov wrote: > Sorry, don't cleanly understund, what combination of BIOS setting I am need to probe? > And what I am need to check? Set 'Hyper-Threading' to Enabled. Set 'X2APIC_OPT_OUT' to Enabled. Try to boot.