Longtime lurker, first time poster...
I've got an Apple ///+ that has a bad power supply. When turning on the machine, I get a rapid "flupping" noise with a corresponding brief flash on the monitor. This is new - before it seemed it had RAM issues
I assume that something is over-volting or crowbar-ing in the supply. All I can find about the possible differences between the /// and ///+ power supply is that the ///+ supply was "upgraded" from the original.
All that said, my questions are these:
Are the two power supplies close enough that diagnosing the one is the same as diagnosing the other?
Any ideas on what I should look for or check for on the bad supply?
Are the two supplies close enough that I could use a regular /// power supply vs. a specific ///+ power supply?
I have a working /// that I could swap out the supplies to further test the ///+ but I don't want to do that if they don't interchange.
Any help, pointers, or offers to sell me a replacement are welcome.