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Thread: SFX: Silverstonetek SX700-PT, any guess how it will compare with SF600?

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    Question SFX: Silverstonetek SX700-PT, any guess how it will compare with SF600?

    Hi!

    Silverstonetek is shortly releasing an SFX (standard-length, not SFX-L) PSU by the name SX700-PT.

    https://www.bit-tech.net/news/tech/p...u-new-cases/1/

    This article https://www.sweclockers.com/nyhet/25...-computex-2018 says it will hit store shelves any moment now.

    This will be the highest-wattage non-SFX-L SFX PSU in the world.

    Do you have any particular expectations about how it will compare with the Corsair SF600 (http://www.jonnyguru.com/modules.php...ry6&reid=477)?


    I like to run it in an eGPU box which should probably consume maybe 70-120 watts, but it could also be 200 watts.

    What I like to optimize for is silence.

    If you have any thoughts about how silent it will likely be in the 100-200 watts interval, please let me know. Likely I'd see that it has its fans all off until 150-170W.

    The Corsair SF600 has fans off up to 130W, right.

    Please let me know, thanks!

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    You're gonna run the PSU in an external box?
    In it you're gonna use a graphics card like the GTX 1060 or GTX 1070?
    It needs to be a SFX PSU?
    And it needs to be as quiet as possible?

    If the answer is yes to all, then get the SF450, that's the most silent SFX PSU for you.

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    Quote Originally Posted by -The_Mask- View Post
    You're gonna run the PSU in an external box?
    In it you're gonna use a graphics card like the GTX 1060 or GTX 1070?
    It needs to be a SFX PSU?
    And it needs to be as quiet as possible?

    If the answer is yes to all, then get the SF450, that's the most silent SFX PSU for you.
    I will run the *Vega 64*.

    It's an external box and specifically it's Akitio Node Pro, which only fits the SFX format.

    As quiet as possible yes.

    The Vega 64 apparently has a brief ~1100 watt spike right at start, which is such that even though normal consumption in office/web can be - I didn't check numbers but - 20-60W wouldn't surprise me, then, still you need a >>500W PSU just to drive the thing.

    From what I read it's even a bit random in that the watt spike is of a particular duration, that different PSU:s will treat differently - if I recall right the spike is around 4ms.

    I read the Corsair SF600 does drive the Vega 64, but, the SF600's fan turns on around 130W throughput from what I read, so I wanted to check if this PSU would be fanless on low loads like the SF600 is, but have a higher threshold.

    This Silverstonetek PSU is *newer* than the SF600, that would be one reason to think that it may have higher efficiency and hence higher fan threshold (and also the Silverstonetek's higher watt rating indicates that too).

    Also correct me if I'm wrong but the fanless SF450 is an example of a PSU that *not* starts the Vega 64?

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    Quote Originally Posted by cmmcmm View Post
    I didn't check numbers but - 20-60W wouldn't surprise me, then, still you need a >>500W PSU just to drive the thing.
    https://www.tomshardware.com/reviews...4,5173-17.html

    Browsing 60W
    Gaming 300W

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    Quote Originally Posted by cmmcmm View Post
    I will run the *Vega 64*.
    Then I don't understand why you where talking about a power consumption of "70-120 watts, but it could also be 200 w"
    The Vega 64 apparently has a brief ~1100 watt spike right at start
    That doesn't sound right.
    I read the Corsair SF600 does drive the Vega 64, but, the SF600's fan turns on around 130W throughput from what I read, so I wanted to check if this PSU would be fanless on low loads like the SF600 is, but have a higher threshold.
    The fan speed isn't (only) looking at the power consumption, temperature is more important.
    Also correct me if I'm wrong but the fanless SF450 is an example of a PSU that *not* starts the Vega 64?
    The SF450 isn't a fanless PSU, but I expect that the PSU will work with Vega 64.

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    Quote Originally Posted by ashiekh View Post
    @ashiekh,

    https://www.reddit.com/r/Amd/comment..._psu_question/

    https://www.reddit.com/r/Amd/comment...an_i_get_away/

    The Vega 64 spikes around 400 watts, *on the 12V rail*.

    Some people buy 750W PSU:s to power a Vega 64 (+ motherboard, CPU, SSD etc.) because their 550W PSU wasn't enough.

    Also apparently, you can lower the Vega's voltage settings to be more graceful to the PSU.

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    Quote Originally Posted by -The_Mask- View Post
    Then I don't understand why you where talking about a power consumption of "70-120 watts, but it could also be 200 w"

    That doesn't sound right.

    The fan speed isn't (only) looking at the power consumption, temperature is more important.

    The SF450 isn't a fanless PSU, but I expect that the PSU will work with Vega 64.
    The Mask,

    What I understood is the Vega power spikes at start as in some PSU:s won't even boot.

    I think after start, the GPU should draw 70-120W, + power draw to charge my laptop makes it 100-185W total draw.

    I won't use this for gaming but for office/web.


    The NJ450-SXL is SFX-L form factor and won't fit.


    If I could find a PSU that will boot the Vega 64 *and* be fanless in the 100-185W total draw territory, I'd be very happy.

    I should try to estimate the GPU's power draw now before buying any equipment that will supposedly drive it later.


    Getting back to the topic, the upcoming Silverstonetek 700W SFX PSU will be the strongest SFX-size PSU on the market.

    It should drive the Vega 64 and hopefully its fan is off up to some fairly high wattage.

    I think it sounds like a deal, but I can't know bc noone has seen it yet.

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    Quote Originally Posted by cmmcmm View Post
    I won't use this for gaming but for office/web.
    Whatever is in a desktop should be fine for this.

    Use the saved money to get a desktop; keep the laptop for travel.
    Last edited by ashiekh; 08-04-2018 at 02:31 PM.

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    Quote Originally Posted by cmmcmm View Post
    The Vega 64 spikes around 400 watts, *on the 12V rail*.
    More than that....

    Attached Images Attached Images

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    Quote Originally Posted by jonnyGURU View Post
    More than that....

    jonnyGURU, wait I don't understand how to read this graph, are you seeing a spike of 51.0A * 12V = 612W total supply to a computer with a Vega 64 in it?

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