I'm trying to convert an old ATX PSU into a workbench supply. I saw there are many safety warnings about discharging the internal capacitors before opening the PSU. I'm not really concerned with it as I managed to cut the wires directly outside the box.
What I didn't find is if it's actually safe to work with the external wires (so the 'output' low-voltage side of the PSU). Up to now, the PSU has been disconnected for several years, but what if I want to test it? Will I then risk something by touching/soldering the wires after shutting it down again?