A4000 PSU ok voltages?

[Munchkin]

I've tested the voltages from my original A4000 PSU and all are spot on except for the +12V which I get 11.29V from.

Don't know if that's ok or not quite enough to have a stable system?

[darksun9210]

hmmm, i'd like to see a little more than that if i'm honest. if i recall, 12V is for the audio amps, and RS232 stuff - plus feeds for drives.
it shouldn't cause any major stability issues, as most of the Amiga is hanging off of the 5Volt lines. Just if your minus 12volt's isn't up to scratch, your audio will definitely sound bad.

personally i swapped out my PSU to something more ATX-like years ago. i don't think i even have the original guts of my old A4k PSU around anymore. However, i did have to go up to somehing like a 550W SFX psu to get the equivilent juice on the 5volt line, as most PC PSU's are focused on 12Volts - for the mainboard and PCIe accessories - with the power regulation for the CPU and stuff being done on the PC's board itself. My A4k's already eaten a "250W" flex-ATX PSU as it couldn't cope with what the A4k needed for juice on 5volts.

http://www.ianstedman.co.uk/Amiga/amiga_hacks/Amiga_Power_supplies/amiga_power_supplies.html#wiringa4000

[Munchkin]

I have an SFX PSU and adapter as well as a 3D-printed mount for it already, but I prefer to use the original if it's still in ok enough shape.

-12V and the 5V lines are spot on, it's only the +12V that's a bit low.