We are now at least able to replicate the crashes very easily…
If we turn render scaling up to 200 then it BSOD within minutes; same at 195,190, 185 but at 180 it is stable.
Now just got to nail what is causing the BSOD. At this stage, as we are now investigating the BSOD rather than juddering / stutters, I will move discussions around BSOD to my other topic: Lockups / Reboots - #13 by DeltaEcho56