I had a monster PC built with 8x 1080ti's from Velocity Micro. We can't get it to render anything other than a few frames before crashing out to the blue screen and locking up. We even had the tech that built it fly on-site and check every piece of hardware, put in new processors, etc. No luck. That system is running C4D R18 and Octane 4 RC2.
THEN I had a new box built that just arrived this week thinking it was the computer. It's a PC with 2x 2080ti's in it. AND ITS CRASHING THE SAME WAY.

These are both Windows 10 boxes, and admittedly we're entirely mac based otherwise, so I don't even know how to "tinker". This computer is literally fresh from the factory with new install of only C4D and Octane.
Happy to pull files or anything I can to help one of you Octane geniuses on here shed some light on what might be doing this.