

Thanks! The whole PC had a time (when its age was ~20 years) where it still booted, but with reset BIOS settings, followed by a time where it doesn’t boot up anymore. So I believe the most likely thing is that it leaked and caused damage. Retro computing community thinks that the most likely cause is battery damage.
Here is the exact model from someone else: https://theretroweb.com/motherboards/s/msi-3121-v3
Battery (top-left) already removed, but it shows that this one has leaked before as well. When you look closely, you see battery residue on the nearby 8-bit ISA (?), so it must have leaked a lot at some point and been cleaned up. Unfortunately, it came with a notorious Ni-Cd Battery; even for its time not the best.






This is a crazy use of AI!
What I have been considering, but haven’t found a readily available setup yet: Make a user with lots of read permissions (most of /etc, API keys & passwords in separate excluded files). That could be done with very restrictive sudo patterns. Let the AI run commands under that user directly (it can do sudo -l to get an idea of what it can do). Then, use it like in Star Trek “Computer - run a level 2 diagnostic”.
Not as the centre of attention when fixing a problem, but as additional input / modern rubber ducking.