I have a K40c (the one with a fan) plugged into a workstation which is heavily used day and night for GPU computations. I have been observing the temperature (reported by nvidia-smi) going up to 73-74 C easily every time there is an intensive job running. The max I have seen is 75C.
So, I have been keeping a 1 tonne AC switched on day and night but since the workstation is in a room where people keep coming and going, the temperature isn’t maintained very well. Also, I sit near the workstation, so I can’t keep the temperature very low.
The technical specs (http://www.nvidia.com/content/PDF/kepler/Tesla-K40-Active-Board-Spec-BD-06949-001_v03.pdf) for K40c say that 70C is the max operating temperature! Is my GPU being hurt by the heat and should I arrange better cooling ? How much cooling is right ? And how does one decide how much cooling would be right ? I have read a bit about BTU and tonnage of AC but I am confused.
PS. Sorry if the topic is in the wrong forum. Please point me to the right one in that case :)