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A comment on Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB. Parent comment

Re:Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB by 21 on Tuesday April 24, 2018 @03:17PM (#16915688)
Desktop power supplies already have that, they can keep the power on for 50-100 ms or so, and they do notify the OS about the imminent power loss. I'm not sure what OSes do with that.
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Re:Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB by gsich on Tuesday April 24, 2018 @03:40PM (#16915885)
How do they notify?
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Re:Samsung's 970 EVO SSDs Reviewed – 500GB and 1TB by londons_explore on Wednesday April 25, 2018 @08:57AM (#16921082)
ATX power supplies have a PWR_OK pin, which goes low when power is lost.

Most motherboards don't report that to the OS though, instead they simply reset all the hardware.

To be fair, it's probably preferable to reset stuff than to operate when the power supply isn't healthy, since that will lead to a lot of weird undefined behaviour.

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