I was tired of all this and just reinstall the system one day. The problem solved now, but my videodriver still crashes in the games, so, i guess, it's just videocard death has came
Since it's not my DROM, which i was replaced by other module, it must by only videocard. Now i want to find same model of VC and test it.
Thanks for all of your help then. I wish all TechSupps work as good as you did here.
Also, i found that AIDA is an excellent choice for comlex tests like this. So from now on, I'am gonna advise it to more peoples for similar purposes.