<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Jul 31, 2013 at 7:35 PM, Oleg Goldshmidt <span dir="ltr"><<a href="mailto:pub@goldshmidt.org" target="_blank">pub@goldshmidt.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
Hi,<br>
<br>
Is there a way to determine the nominal PSU power without taking the<br>
computer apart (actually, preferably without powering it down)? Is there<br>
any vendor information that Linux could in principle read? It's a<br>
vanilla home desktop, not a brand name server.<br>
<br>
I know of dmidecode and lshw, but neither returned anything for<br>
PSU. There is nothing on the outside of the PSU that I can find (well,<br>
it does say "220Vac").<br>
<br>
Can acpid help? Am I out of luck?<br>
<br><br></blockquote><div><br></div><div>Assuming you can indeed measure the consumption of ALL the components on your computer (which I believe you cannot) - you still need to account for energy being converted to plain heat inside the PSU itself. This can easily get to 20% or even more on lousy PSUs.<br>
<br></div><div>Products such as this: <a href="http://www.powersaver.co.il/pl_product~EM-IL-01~3~0.htm">http://www.powersaver.co.il/pl_product~EM-IL-01~3~0.htm</a> will tell you how much the device really takes from your wall socket (not including heat wasted on wires resistance from IEC's meter to your socket ;))... <br>
<br></div><div>HTH,<br><br></div><div>-- Shimi<br></div></div><br></div></div>