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SiriusHardware · 26th Sep 2020, 11:29 pm

Yes, sorry, I was being generic about SMPSU faults rather than specific about yours. If it starts at all, it is probably not a startup chain problem - if it was it would be unlikely to start up under any circumstances.

With that out of the way, since it appears to run OK with a dummy load you may, as has been suggested, have a problem on the computer which is causing the PSU to shut down - excessively low resistance on one of the rails for example.

26th Sep 2020, 11:29 pm	#11
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,586	Re: Acbel API1PC36 from an old Mac Yes, sorry, I was being generic about SMPSU faults rather than specific about yours. If it starts at all, it is probably not a startup chain problem - if it was it would be unlikely to start up under any circumstances. With that out of the way, since it appears to run OK with a dummy load you may, as has been suggested, have a problem on the computer which is causing the PSU to shut down - excessively low resistance on one of the rails for example.