Re: [opensuse] [OT] How much power does a PC really consume?

Carlos E. R. wrote:


http://www.order.conrad.com/xl/1000_1999/1200/1250/1253/125319_AB_05_FB.EPS.jpg

Ah, yes. I'd prefer a data sheet in English (or Spanish), but I get
the idea. :-)

I think there is a datasheet on the conrad website in 8-9 different
languages - http://www.conrad.de/

What I'm looking for, and probably the manufacturer doesn't say much,
is how well they measure spikes, and what about "reactive power" and
"switch mode" power loads.

I'm pretty certain it won't be able to measure any spikes. As for the
type of load, it's almost 99% resistive. I.e. the load doesn't vary
with the phase of the AC.

A PC uses a switch mode power supply, quite big, taking power in a
strange waveform, and this may confuse heavily cheap meters (and not
so cheap). Difficult to say.

I think the load on the mains supply is actually pretty straight.

A definitive test, in your case, would be to connect a scope on the +5
and +12 rails (perhaps 3.2? line). A spike going down in the +5 would
provoke an instant reset.

Hmmm, I could do that, but I've only got a normal scope (no storage), so
I'd have to sit and watch it. Maybe.


/Per Jessen, Zürich

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