First lower your overclock, especially the core. X17 does not stand high overclocks. Lower your intensity to 17.5-19. Cap your power limit.
Then make sure that your swap memory is high enough. For 6 cards at least 32GB.
Overclocks lowered substantially, intensity lowered to 18. Still crashing.
I've now increased page file size from 32 to 64 GB.
This thing better work now, it's getting ridiculous...
![Sad](https://bitcointalk.org/Smileys/default/sad.gif)