I am typing this on a 9500 now that was given
to me with a bad power supply.
There are 2 failure points where the main
PCB is under-engineered for the current
and the solder connections and short trace
to a large resistor break down. The components
are fine, the physical trace and solder need to be restored, and you have a working 9500.
Just take the PSU apart and eyeball the
PCB for a darkened spot with weak traces.
Its worth the trouble. The 9500 is one of the most expandable macs ever made.
