Gregory's Server
You remind me many moons ago of trying to debug code on a TI MSP-430 microcontroller.
Very power efficient core… and if you happened to get it in a bad state… you'd have to power cycle it.
The core could run down to 0Hz and could power itself on mere microamps… which meant unplugging power wasn't enough, it'd just run from decoupling caps.
I had to short the power rails on the sod to *discharge* the capacitance. Then it'd finally reset!