Just for your info. I updated by graphics driver to the latest version (382.53) and faced all sorts of the PC hang and crashes (blue screen) and auto reboots. In the event viewer I could see a lot of graphics driver hung and recovery messages. So if you have not updated your graphics driver to the current (382.53) version, you may want to wait for the next version. The screen hang and auto recovery was happening on windows itself but if I had Daz Studio open, every time I got a blue screen.
I have gone back to my older version 376.33 and everything is stable.
Notiusweb and Laticis had mentioned similar issues in the OctaneRender 3 for DAZ Studio [TEST and STABLE] thread.