This is untrue, you need to check the max amperage on each rail of your ATX power supplies. Quite a few have extremely low or no +3.3V rail at all. You need +3.3V at 12A, +5V at 7A, and +12V at 2A. Yes you can probably make things work with less but straying from the Sun PSU specs have resulted in a lot of odd issues on Naomi for users.I would say any ATX PSU of 300W should do, depends on how stable the voltages are as Naomi can be a bit picky...Cool! Thanks for the info!Any recommended PSU for use With Naomi carts and the HAS?not sure how the Suzo/Happ PSU's do, but in a normal Jamma cab, the Capcom IO should be powerfull enough for carts.
As long as you don't use Dimms/GDRom you should be fine.
EDIT: the official SUN PSU from a New Net City outputs a lot less then 300W so any decent ATX should do
12amps is the official output of both the Wei Ya P271 and P272, but no way in hell you need 12amps unless you are running a full GDROM setup.You need +3.3V at 12A
Absolutely-5v is not part of ATX
Yes, it is a part of ATX connectors however some PSU makers to cut corners pull it from 5V via conversion and provide very little amperage as so little uses it in an ATX setup. This is why you absolutely must check what each rail is rated for rather than blind buying a PSU and throwing it at a Naomi.@sammargh I agree with some ATX psu not having enough amps on each real, but I do not agree with some not having 3.3v.
It is part of the ATX right?
-5v is not part of ATX
Looks great! Will you sell the 3P4P adapter PCB for IGS PGM and CPS2 with the HAS V3.2?Some pics of the V3.2:
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