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Best load percentage to maximize psu life

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zucca17
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2020/10/26 06:25:49 (permalink)
I have been reading about this subject and I found some people saying that 60% psu load is best, and other people say 80%.
My psu in particular is EVGA Supernova G2 1300w.
Is it some trustable source of information of this subject?
 
 
edit title by Cool GTX was shelf-life
post edited by Cool GTX - 2020/10/26 07:54:58
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    ty_ger07
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    Re: Best load percentage to maximize psu shelf-life 2020/10/26 07:20:00 (permalink)
    Maximize shelf life? Zero percent load and unplugged. That should give you the best shelf life.

    The primary thing that wears out in your PSU is the capacitors. Keep the load low. Keep them cool. And they will last a long time.

    As far as 60% load or 80% load during use, I would plan my PSU size based on my average expected load and the efficiency curve of the PSU. Usually somewhere between 40% and 70% load is good for maximizing energy efficiency.


    Your use of the word "shelf life" is unclear and confusing. I don't know how to give a better answer.

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    zucca17
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    Re: Best load percentage to maximize psu shelf-life 2020/10/26 07:26:14 (permalink)
    ty_ger07
    Maximize shelf life? Zero percent load and unplugged. That should give you the best shelf life.

    The primary thing that wears out in your PSU is the capacitors. Keep the load low. Keep them cool. And they will last a long time.

    As far as 60% load or 80% load during use, I would plan my PSU size based on my average expected load and the efficiency curve of the PSU. Usually somewhere between 40% and 70% load is good for maximizing energy efficiency.


    Your use of the word "shelf life" is unclear and confusing. I don't know how to give a better answer.



    I meant lifetime, sorry, not a native english speaker here.
    I am aware of the efficiency/load curve, I don't know if it is related to the best possible load percentage to make my psu last longer.
    I can distribute the load among my rigs to balance it.
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    Cool GTX
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    Re: Best load percentage to maximize psu life 2020/10/26 07:53:57 (permalink)
    Keep PSU cool and use some sort of surge protection at the wall
     
    Heat and 'bad' voltage from the wall outlet do most of the damage
     
    I subscribe to buying a PSU so your expected load is only @ 80% of the MAX output of the PSU & a consumer grade UPS for 24/7 use or critical tasks
     
     

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    mobhill
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    Re: Best load percentage to maximize psu life 2020/10/26 21:27:33 (permalink)
    I'll have to look into this some more. I am upgrading my system after 9 years (!) and the only thing I don't have to upgrade is my 1050W PSU. Maybe I should knock on wood, but it's been great, and I don't think I've had it much over 60% utilization ever, if that. No UPS or anything either, although I am not doubting that helps. 
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