[Gllug] Power supply problems - question...

[Christopher Hunter]

On Friday 10 Oct 2003 10:24 am, Darren wrote:
> First post, so hello folks! :-)
>
>
> Regarding power supplies...I'm wanting to build a low-power-consumption
> mini-itx box, just running Debian base.
>
> Standard power supplies are a lot cheaper than the specialised 65 or 100
> watt ones and I just want to confirm what I think I remember from GCSE
> Physics ;-) "Conservation of Energy" - If I use a 350w power supply to
> power this setup, it'll only consume whatever power the connected equipment
> draws (excluding losses through heat generated etc).
>
> Does this sound reasonable?


Pretty much so.  However, the 350 Watt job will have a higher intrinsic 
consumption - the power supply requires some energy for its' own use.  A 
smaller PSU will draw less current "off load" than a bigger one.

Chris 

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