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Thread: Reliable PSU Recommendation - i9-9900KS

  1. #11
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    Quote Originally Posted by Juular View Post
    My concern are mainly about the lack of UVP, at least it's not listed in specs.
    And UVP is not required.

    I put the red stop light on the fact that it's 230V only. That's a show stopper right there for me.

    I've seen too many 230V only units fail in areas with poor mains where brown outs happen and the input voltage drops below the minimum threshold.

    It's nice to have stable mains. It's nicer to have a PSU that doesn't blow up if the voltage drops too low.

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    ashiekh (1 Week Ago)

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    Quote Originally Posted by Juular View Post
    Request what ? A review sample ? Looks like Jon doesn't review stuff anymore, for a while now.
    Additional information.

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    Quote Originally Posted by Jon Gerow View Post
    Well... To be fair, Intel lets you implement OPP in lieu of OCP, so saying it's "ATX 2.31" doesn't mean anything.

    Still would be good to know what supervisor IC is used. They typically use the P113A, which does not have OCP. That would be a dead give away that they're using OPP.

    As for OTP: Just about any PSU with a thermally controlled fan has OTP. It's pretty simple to have the circuit trip the PWM controller if the fan controller feels that a max RPM is required.
    Where "Intel lets you implement OPP in lieu of OCP" its written?
    I couldn't find OPP.
    https://www.intel.com/content/dam/ww...guide-june.pdf

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    Quote Originally Posted by none77 View Post
    Where "Intel lets you implement OPP in lieu of OCP" its written?
    I couldn't find OPP.
    https://www.intel.com/content/dam/ww...guide-june.pdf
    It's not "written". It's just fact.

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    Trump rules.

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    Bottom line is IF Intel tests your PSU for "compatibility" (see: https://www.intel.com/content/www/us...-selector.html), they're not going to do a dissection and figure out what ICs you're using. They're just going to test it on an ATE to see if it meets documented criteria. And since a Chroma can't tell the difference between OCP and OPP, it doesn't matter which one you use if you're going to call yourself "ATX12V 2.31 compatible".
    Last edited by Jon Gerow; 1 Week Ago at 02:49 PM.

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    So anyway, we're over-speccing COMPLETELY and getting a Corsair RMi750 to make sure that the power that the 9900K @ 5GHz will be getting will be clean, good, and enough, and most importantly that the PSU will be one of the parts that has the lowest probability of failure.

    We've also changed the build to run an RS3DC040 Intel RAID controller and 3x Samsung 860 Pro SATA drives.

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