English Amiga Board - View Single Post - need help my A4000 won't start with new A4000 ATX PSU adapter

Stedy · 31 August 2019, 21:08

Hi,

Does your micro-ATX PSU have smaller orange wires in parallel with the larger ones?
Some ATX supplies use remote sense on the +3.3V motherboard connections, if they get no feedback, the PSU shuts off or won't power up. You could try connecting all the +3.3V wires together.

I have a 600W PSU that powers up fine with no load, though I do connect all +5V, +12V and +3.3V wires together via an adaptor.

31 August 2019, 21:08	#9
Stedy Registered User Join Date: Jan 2008 Location: United Kingdom Age: 46 Posts: 733	Hi, Does your micro-ATX PSU have smaller orange wires in parallel with the larger ones? Some ATX supplies use remote sense on the +3.3V motherboard connections, if they get no feedback, the PSU shuts off or won't power up. You could try connecting all the +3.3V wires together. I have a 600W PSU that powers up fine with no load, though I do connect all +5V, +12V and +3.3V wires together via an adaptor.