trying https://us.download.nvidia.com/XFree86/Linux-x86_64/615.78.08/NVIDIA-Linux-x86_64-615.78.08.run
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
 64 505.2M  64 324.1M   0      0 310.8M      0   00:01   00:01         322.3M
100 505.2M 100 505.2M   0      0 321.5M      0   00:01   00:01         322.3M
100 505.2M 100 505.2M   0      0 321.5M      0   00:01   00:01         322.3M
100 505.2M 100 505.2M   0      0 321.5M      0   00:01   00:01         322.3M