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Thread: Seasonic S12III (3) appears... DC-DC finally?

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    According to people involved with Mining, Ripple over 60mV on 12V increases failure rate.

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    The large scale miners I talked to din't have any problems with 60mV. Even at >100 mV the increase in failure rate was hard to measure and still in the range of pure chance. The cryptocurrency miners I work with report mostly problem with cheap mining PSU. Some models have avergae lifetime of 2 months only. Others basically kill components of the rig on regular basis because their voltages, turn on signals and ripple are completely off. The moment you leave the ATX specs really bad things can happen. Soem components can tolerate the substandard power, others die quickly.

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    Quote Originally Posted by Philipus II View Post
    The large scale miners I talked to din't have any problems with 60mV. Even at >100 mV the increase in failure rate was hard to measure and still in the range of pure chance. The cryptocurrency miners I work with report mostly problem with cheap mining PSU. Some models have avergae lifetime of 2 months only. Others basically kill components of the rig on regular basis because their voltages, turn on signals and ripple are completely off. The moment you leave the ATX specs really bad things can happen. Soem components can tolerate the substandard power, others die quickly.
    I agree with you. Cheap mining psu ripple around 200mV over spec. they ( psu and the rig) still survive shortime
    I think rate of failure lower than melting modullar in good/best psu use to mining.

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    So what happends when the ripple is 'soso' high? Does it only affects psu itself?

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    Quote Originally Posted by rgbodosk View Post
    So what happends when the ripple is 'soso' high? Does it only affects psu itself?
    The filtering of the AC ripple has to be smoothed sooner or later. If not by the PSU, then by the motherboard, graphics card, etc.

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    Quote Originally Posted by Stefan Payne View Post
    According to people involved with Mining, Ripple over 60mV on 12V increases failure rate.

    Of what? The supply, the video card?

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    Quote Originally Posted by ashiekh View Post
    Of what? The supply, the video card?
    The video card.

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    That makes sense then if the video card VRM is stressed by the ripple.

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    Quote Originally Posted by ashiekh View Post
    That makes sense then if the video card VRM is stressed by the ripple.
    its not (just) the VRM, its also something going through the VRM to the Chip...

    Remember:
    The better the voltage comin in, the better the voltage coming out (exception: Linear Regulators).

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    Well crap. I just bought this from Newegg for $22 AR, to use with a new Plex server build (i3 9100, 8GB DDR4, 128GB SSD). Storage is coming from my QNAP NAS. I figured since it was a Seasonic it must be decent. Do you guys think this will be alright to use with this low power setup, on 24x7? Or, should I not risk it, ante up $50-$60 and get something better?

    Thanks in advance for any input.

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