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Budget efficient Home Server ATX PSU (piefed.social)

submitted 1 year ago by bjoerns@piefed.social to c/selfhosted@lemmy.world

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Hi everyone,
for 20 years now i run servers in my own home to host my stuff. Because i am living in europe with quite high price tags for electricity i am always searching for ways to make my servers more power efficient.

But finding a power efficient ATX PSU with performes well in ranges around 20-25W, where my server idles most of the time, is quite challenging.

Dont get me wrong, the Server has an very efficient PSU, a Super-Flower SF450P14XE Golden Green Pro but thats now 14 years old (but serves me well). I bought it for 55€ back in the days.
Over the years i tried various budget insider tips regarding efficent PSU's (for example the Cooler Master MWE400) which all were also good but not better than the 14 year old Super Flower, which i think is kind of sad.

Just yesterday i tried a 160W PicoPSU combined with a 150W DELL DA-1 powerbrick (which should also be quite efficient), but it was the same. My Server used 1-3W more than with the Super-Flower.

Long story short: are there any efficient PSU out there that you can recommend for loads around 20-25W, that dont have a price tag like a kidney on the blackmarket?

I also have seen people trying to mod old Dell Server PSU with are 750W with platinum rating an are cheap on ebay, but thats another story.

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[–] glitching@lemmy.ml 3 points 1 year ago (1 children)

do you have a ballpark figure of potential savings in $/€ per annum? and for what hardware? I remember calculating something similar and I don't think I broke $20 in total, so promptly forgot about it.

[–] bjoerns@piefed.social 1 points 1 year ago

1W of 24/7 saved power equals approx. 2.5€. I dont have my PV System in my calculations, but it really does not matter that much. Fact is that i will need a new PSU. Maybe in 3 months or in 3 years, and for that is search for one which is highly efficient and on a budget. I know that it makes no sense buying a 100€ Platinum PSU to save 2€ per year.