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  1. #1
    Super Moderator CLiNT's Avatar
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    Why 80 PLUSŪ is Irrelevant to You When Buying a PSU (article)

    Date: Tuesday, October 04, 2011 Author: Paul Johnson Editor: Kyle Bennett
    Why 80 PLUSŪ is Irrelevant to You When Buying a PSU

    Interesting article over at [H]ardOCP regarding PSU standards cheating accross PSU manufacturers.

  2. #2
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    Are you saying that salesmen lie? Surely not!?!

    cheers, Paul

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    Super Moderator RetiredGeek's Avatar
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    Quote Originally Posted by Paul T View Post
    Are you saying that salesmen lie? Surely not!?!

    cheers, Paul
    Paul,

    Only when their lips are moving.
    May the Forces of good computing be with you!

    RG

    PowerShell & VBA Rule!

    My Systems: Desktop Specs
    Laptop Specs

  4. #4
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    PSUs are one of those areas of computing that just seem to be all about lies, dam lies and statistics. Where many of us strive to make our equipment more efficient, the PSU manufacturers seem to have concentrated on higher and higher outputs. I'm sure some of them are just modified space heaters and need kilowatts of air conditioning to compensate for the heat they must generate!

    I built a really hi-spec Media PC. A media PC doesn't require spadefuls of power and in the interest of energy saving I used a pico-ATX motherboard with Intel i5-2500T processor. Its measured power usage is peak 63 watts (during boot up) and in use (playing a BluRay DVD with PowerDVD) averaging around 30 Watts. But the PSU is hideously inefficient at this sort of level: PF around 38%. I first tried a 200W micro-ATX supply, but it was both unacceptably noisy and even less efficient. I ended up with a 120W power block and a pico-ATX unit. At least it is silent!

    But trying to find a quality, low power - preferably modular - PSU is impossible. They just don't exist. I will have to look at finding a power supply to build from components.

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