Originally posted by biggendicken
I think I have isolated the issue. It seems be an overload of the PSU, like you suggested, running a Corsair SFX 500W 80+ Gold to power 1080ti + and i7 8700k, might be too tight, even though it's a prebuilt system by corsair. It has never been an issue before though, but I suppose it depends on which engine and drivers etc.
Overclocking my GPU makes me pretty much crash within seconds. Underclocking I can play for a bit longer. What really made the difference was limiting the power to the GPU. At 70% power I tried playing for roughly 30 minutes without any issue on full resolution.
Ah good to know, thanks for confirming. Unfortunately Diabotical may be more likely than other games to expose issues like this as it leans very heavily on the GPU and tries to keep CPU usage lightweight (1,2). This is desired for stability/smoothness because, to oversimplify, GPU workloads are more predictable (less variability between frames). It has the inconvenient that cards get a bit hot and people freak out a little.
(1) This is not to say that our current GPU power usage is entirely justified in relation to the frame-rates we are achieving, this can and will be improved over time, and things won't have to get quite so hot to get the same FPS.
(2) This is also not to say that we have been completely successful in making CPU usage super light either, we are getting there.