[2chesapeakes]

I found the same thing with my 975 damn thing cold boots below -40 if I change a setting that requires a cold start. Small changes and it is not affected. I know it is a big temp range but between -60 and -90 is ok outside that and outcome is not predictable on my 975. I generally try and maintain -90 during a 3d run. I have never tried pouring multiple pots just the cpu. I know during a vantage or 06 run I am using a thermos plus with controlled pours to maintain temps. The sucky part is a pour at the end of one of the tests while temps are hovering at the cold bug range can blow the run to shit break out the heat gun or torch. Pouring LN2 during 3d runs is an art form as far as I am concerned. A heat gun or small torch will help bring the temps into range without much defrosting or moisture. I keep a high wattage heatgun plugged in and can generally get back into booting temp range in 20 to 30 seconds at the most. If I find I am really unstable I will let the temps come down to -30 before trying to change settings and rebooting.

Now once the urge to hip throw the board subsides kick that thing in all four of it's GPU nuts and break 36K