Dell R720 / R730s, dual GPU (typically with K40m or K80) in there with 1100W dual redundant PSUs and the GPU enablement kit. We also set our fans to constant 70

Dell R720 / R730s, dual GPU (typically with K40m or K80) in there with 1100W dual redundant PSUs and the GPU enablement kit. We also set our fans to constant 70% min, to keep the airflow good. On some servers we introduced the GTX 1080, either along-side a K40/K80 or two per chassis (see http://arnon.dk/how-does-the-nvidia-gtx-1080-stack-up-against-the-nvidia-tesla-k40/ http://arnon.dk/how-does-the-nvidia-gtx-1080-stack-up-agains...). They actually work 15% faster on average compared to the Tesla K series (Remember it's a 5 year old card), but they just stop working after a few months, or return inconsistent results for some operations. Now, we're not doing graphics with them. We have a GPU database called SQream DB - and we depend on the results to be correct. In the end, they didn't make a lot of sense for us to deploy in a production environment, so back to the Tesla series we went.