NUC7i7DNHE performance is even better than I thought… up-sampling to DSD512 with poly-sinc-lp-2s filter with Roon Server running on the same machine, running for a few hours.
Max individual core loading is 75%, average physical core loading (all 4 physical cores) is ~70%.
This is a good indication that I did a half decent job with building this particular fanless NUC - luckily ! 
Actually a good indication that if you just carefully following the instructions Akasa provide with the Plato X7D, you should be fine.
