Electronics Issue ATX PSU Cap Eruption

67Dart273 said
............was because of long storage non-use.

Actually, this PSU has done some shelf time. Probably 3-4 years. Only about an hour run time with it.

67Dart273 said
...….find out what the circuit actually runs for voltage. It might be that the thing is still marginal

Lol, my electronics knowledge is in the peewee league.
I had the thing jumped and powered up.

Pin outs voltages (if ya' can read my scratch marks) on the 24 pin are...…………..