If man is eliminated, solid state intelligence is eliminated. Point to one machine, other than the Oxford Electric Bell, that is still running that is even 100 years old without human intervention. We are the cockroaches of nature, we cannot all be killed, the time for that was one of the genetic bottlenecks humans have gone through, but it's over now, humans in some form will be here until they either leave the planet ahead of the Sun swallowing it or die on it.

https://en.wikipedia.org/wiki/Oxford_Electric_Bell

I mean, there are no humans from 1840 around...

It's kind of odd to think the machines wouldn't update and replace their parts like the ship of thesisus.