Yeah that's my conclusion too, there's just too many things that can go wrong with stock Mean Well supplies (as you demonstraed) as they don't meed the Commodore specs. Even if I had an unexpanded Amiga 500, I still wouldn't use MW and would pay the few bucks extra to get a CA-PSU.
Recently, I...
What is that bodge wire and how is it connected on the A1200 motherboard (high-res photo of the relevant region would be great). Assuming it's related to IDE led but I'm not familiar with that mod.
My issues are clear design flaws, I don't think there's anything to be fixed here with firmware. Oh well, lesson learned (also re: all the usual idiots on youtube that shilled this without mentioning even a single negative).
Do you have a reference to regulating the 12V rail with DC-DC converter? I don't think I've mentioned that (me referring to DC-DC was as a design for an entire PSU, nothing to do with 12V on a MW).
@bdb The possible issue with modern ATX supplies is that they use the 12V rail as the main rail for voltage regulation. This means that if there's not appropriate load on that 12V rail (which will almost always be the case with an Amiga) then all bets are off regarding voltage output, and it can...
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