[kwertzzz]

The article mentions also that the computers are short-circuiting. I guess that you can lose a lot of energy when there is a short circuit. Maybe with an infrared camera, one can get an idea where all the energy is wasted. Apparently the author did check that sentry was not enabled.

[Neil44]

The short circuiting comment sounded to me like something someone non-technical would say when they don't really know the answer.