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PSU PSU recommendation for 300w GPU

Discussion in 'Hardware' started by wyx087, 12 Sep 2020.

  1. Vault-Tec

    Vault-Tec Green Plastic Watering Can

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    I've never had a PSU fail. Mostly because I usually buy ones that can easily deliver way over double what I need.

    I had an AX1200 for about six years, never missed a trick. Using a 1550w Platimax now.
     
  2. wyx087

    wyx087 Homeworld 3 is happening!!

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    Looks like, from my sample size of 1, plus Pete’s comment, that good quality PSU will rarely fail, just slowly decrease in its ability to deliver power as it ages.

    So over spec a good quality PSU is in a way buying longevity.
     
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  3. Bloody_Pete

    Bloody_Pete Technophile

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    I've seen a cheap one litterally fire caps across a room... Still worked after though oodly...
     
  4. Vault-Tec

    Vault-Tec Green Plastic Watering Can

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    Oddly enough I've never even seen a PSU failure. Mostly because the first thing I was ever taught when building a PC was "Don't use a **** PSU".
     
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  5. rollo

    rollo Well-Known Member

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    I have saw a cheap one explode under limited load, wish I had a video camera. Was brought from Pc world and returned to PC world

    meant to be 700 watt was for a kids pc that was been done cheap
     
  6. Vault-Tec

    Vault-Tec Green Plastic Watering Can

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    In fact no, I lied ! I bought a brand new FSA silver and it blew up when I plugged it in to test it.

    From the feedback on Amazon it was a whole batch that failed. I forgot all about that it was years ago, but it sent a nice blue spark out of the back LOL.
     
  7. wyx087

    wyx087 Homeworld 3 is happening!!

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    What temperature would people operate their PSU at? If given the choice?

    The Superflower LeadexIII gives me the option to have the fan start at 45c or 65c (see below).

    The 45c setting is rather annoying during light workload. The fan would spin up for 10-15s and stop every 10-20 minutes.

    Is it okay to use the 65c option long term? Temperature might hover around 60c for prolonged period of time.

    [​IMG]
     
  8. adidan

    adidan Guesswork is still work

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    My EVGA has a 'if it's not too hot i'll stop the fan' option but I never use it.

    I'd prefer to have air flowing at all times and not have it stop/start but that's based on no particular reasoning and because I use headphones (not that it's audible over other things anyway).
     
  9. wyx087

    wyx087 Homeworld 3 is happening!!

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    This PSU also have the same option, the fans to run at constant minimal speed.

    But I run all my main components with the philosophy: "if it's not too hot, run it passively to reduce dust buildup" and "fans only exist to prevent components overheating, no point cooling something down to room temperature"
    I actively seek out fan-stop GPU's. The CPU fan when the cooler can handle idle load. The case fans are set to only run at absolutely minimal speed when temperature allows. That temperature being below 60c.

    So I'm wondering, can the PSU, which is different to ASIC's, handle being run at around ~60c almost 24/7?
     
  10. Bloody_Pete

    Bloody_Pete Technophile

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    It'll degrade its life a bit but I'm sure it'll be fine.
     
  11. wyx087

    wyx087 Homeworld 3 is happening!!

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    A bit? Should still last 7-9 years? considering warranty is 7 years. I should still be able to pull 700w at 7 year birthday?

    The Seasonic with 5 years warranty probably couldn't output 500w at its 5 year birthday. Considering trying to pull 400-450w made its 12v drop below spec a few months before its 6th birthday.
     
  12. Bloody_Pete

    Bloody_Pete Technophile

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    I wouldn't assume that. Depends what the warrenty covers.
     
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