It is possible that is was only the PSU holding back the GPU. I will find out when I replace the PSU in the Cheapo system. The conditions under which the cheapo system was ideal (with the exception of the PSU) to be getting the max hash out of the system. It was a single card that was well within the rated power of the system. The card was in an atmosphere where the ambient temperature never exceeded 2 degrees C and the majority of the time the temperature was well below 0C. The things that make me wonder is the card still ran slightly over 40C and hashed lower than it did while it was in the 7th gen intel chip. The reference to 0.0001 btc was per day. I am not sure if a single GTX 1080ti could make 0.001 Bitcoin a day. That would mean it is earning 8 dollars a day at 8K. The most I have heard a single card making is closer to 6 dollars a day and I believe that was with Bitcoin at closer to 10k.