I set up smart switches to power my home, and they've made this lazy man into a genius ...

I'd guess you are looking at a cap failure in the original PSU. 386 era is what, early 90s. 30+ years is a good run. If a replacement PSU doesn't have a switch, you could always hook it to a surge ...

Leveraging Menlo’s Ideal Switch technology, the MM5230 RF switch minimizes insertion loss and provides high power handling in a chip-scale package. The device is a SP4T switch that operates from DC to ...

A load switch is an electronic switch. It works like a relay to power supply rails in systems, but it has no moving parts. Load switches are increasingly found in today’s portable electronic devices, ...