Dear

Can somebody help
Hurco then i start about in random time enters freeze and only shut donw machine help

here in video you can see everything that hapens.
https://www.youtube.com/watch?v=01x7ktoAnfo&t=22s

ATC no it is take off for repair.
checked voltage it is fine.
change hard disk to other (not helped same problem)

that left to check
Computer ram (can it be?)
Input output modules.

Can somebody suggest that to check and were to search