How it can be?

One 280x Gigabyte - 80 mh.

https://vimeo.com/223814452

https://www.dropbox.com/sh/6hnnv7b1829lurf/AAB-Vpdx4AwCKQ_qOIS6kmg2a?dl=0

I've attach a couple of files with screenshots and log files with reports for 6-7 hours.