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Old 11-08-2021, 12:15 PM   #2
PeteS in CA
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Join Date: Aug 2005
City & State: San Jose, CA
My Country: USA, Unsure of Planet
Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz
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Default Re: Power supply build quality pictorial. part 2

Power Good (the grey wire) is a signal, not an output voltage. If all the output voltages from the power supply are in regulation, the Power Good should be logic high, 5V. If all output voltages are good but the Power Good signal is low, then the circuit that sources the power good signal (the "supervisor" circuit) is the problem. Wiring 5V to the Power Good signal pin could do more damage in the supervisor circuit, possibly affecting Over-Voltage, Over-Current, and Over-Temperature Protection functions.
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PeteS in CA

Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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