Paul pisze:

2) The weakest power rail in a computer, is the +5VSB.

With this advice about 5V i searched my mobo manual once agin and found
option called "PME Event Wake Up" and its something about this 5V line
and PCI and it was enabled (default Disabled) so i disabled it i am
watching TV now for about hour and no restarts but i will test more to
be sure it worked.

Thanks for your help, if problem will still happening i will write
again, if not i will write to say the problem is solved Thanks!