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Thread: Seasonic Prime Review at Anandtech

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    Quote Originally Posted by ef3393 View Post
    it depends on which pin you test and the pin you load, the sensor pin will keep the voltage close to setting point under different loading.
    If that was the problem it would mean that they're putting so much load on some wires that the voltage drop will be around 0,5V. With a voltage drop that big they're probably melting the cables and the efficiency goes down by a lot, which would probably mean it can't do Titanium.

    I think it's more likely that it's a engineerings sample, which isn't tweaked for performance, but only for efficiency.

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    Quote Originally Posted by ef3393 View Post
    it depends on which pin you test and the pin you load, the sensor pin will keep the voltage close to setting point under different loading.
    Sorry that is in case of the Prime nonsens! The Sensor is allways sensing at the ATX connector. So if you have very heavy load on the ATX connector the PSU tries to regulate that and voltage on the other connectors may go up a little.

    No Chance to get the voltage somewhere near 12V on my units.
    As Mask says, you would need to melt some cables for this.

    That is an example of the voltage on different connectors on loadings from Zero to 100% all groups having equal loadings.



    i have 7 prime units, press samples and retail.
    ALL of them have voltage outputs near 12.2 V stable!

    Even Seasonic has an special image on ist website stating that 12V has regulation with +2% above 12V.
    So even they say it is>= 12V!



    So either the Sampels was a very very very golden one, or ....
    Last edited by RobiKenobi; 04-09-2017 at 12:23 PM.

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    Hehehehe

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    Most companies send very early samples to Ecova simply because Ecova is very slow. Since you need the certificate live for the products introduction you should betetr not wait for mass production PSU to be ready.

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    Quote Originally Posted by Philipus II View Post
    Most companies send very early samples to Ecova simply because Ecova is very slow. Since you need the certificate live for the products introduction you should betetr not wait for mass production PSU to be ready.
    And still Ecova result are in many cases more reliable then some "Reviews"

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    Quote Originally Posted by quest for silence View Post
    And so what? I mean, which is the "real" 12V load regulation?
    every connectors or pins have different load regulation especially for multiple 12V rails

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    Quote Originally Posted by ef3393 View Post
    every connectors or pins have different load regulation especially for multiple 12V rails
    So modern LLC + sense wire units may suffer of the same kind of problem we see about crossloaded group regulated PSUs? Even extremely expensive ones like those Seasonic Prime Titanium?
    Best, Luca

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    No, look at the posts above.

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    Quote Originally Posted by -The_Mask- View Post
    No, look at the posts above.
    It's just that I don't think, as Philip said, the Prime sample tested by Ecova was so inferior to production ones: I also checked some reports of gold/platinum LLC units and I didn't find another example of that relatively bad regulation (albeit that's not an evidence).
    Best, Luca

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    Hypothetical question. While the performance of these units is no doubt "mythical" is there any real world benefit compared to say an X series unit? Or if you wanted to keep the peace of mind with the 12 year warranty, a Prime gold model?

    I know it's not a review sites job to diminish the tech these manufacturers offer. But really, would there be any appreciable, or even noticeable, difference?

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