Thank You for the fast answer, Admin.
What is really strange: system was working absolutely without any problems for very long time before that bsod's. After these bsod's- without problems too, as before. Then, after some days or weeks i was upgrade system drivers- Intel chipset (before it was original windows drivers), Intel storage drivers to the newest. Just for knowing that i have newest drivers. As i have say before, system have passed all stabilily tests, memtest was passed for 20 times.
I don't know what to do. I'm scared that my system have hidden hardware problem. I can't risk and wait for the next bsod's, because stability in my work is the point.
Maybe better just upgrade my HP to the new? Yes, i like my current system and don't want to do this.
Just i want your opinion, it was hardware or software problem... I know that it is problematic to say what it was, i just want opinion.