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3

Does this happen with every power supply ever, or are there different scenarios for old/new, desktop/server supplies?
– user1306322
Commented Apr 21, 2017 at 20:53
12

I can't speak to every power supply ever, but this is what happens on typical desktops and servers based on standard PC designs.
– David Schwartz
Commented Apr 21, 2017 at 21:01
10

Indeed, this is part of the ATX power supply spec. I believe it was in the AT power supply spec as well. To use the supply again you will need to remove AC power completely (unplug it...or if it has a hardware power switch on the back, flip that to off) for 10 seconds or so, to discharge a capacitor. Then restore power.
– Jamie Hanrahan
Commented Apr 21, 2017 at 21:47
4

@kasperd: There are other intermediate regulators between the power supply and the digital logic.
– Dietrich Epp
Commented Apr 22, 2017 at 5:01
2

@kasperd: The comment wasn't an attempt to "invalidate" anything you wrote.
– Dietrich Epp
Commented Apr 22, 2017 at 17:00

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