My CPU was not overclocked as i tested PC. It was first thing i thought about to set base clocks on CPU and RAM as well. Storage never contained more then a half of its capacity. However problem seems to be storage somehow. I have no idea how it could affect boot and display but it works fine once i installed windows on my HDD. Thanks for usefull tips and i hope that i wont expierience such a disaster again with my current system drive.Thread was inactive as i tested if the system wont boot properly but i think that solves the problem.