Thread: Electricity use
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Old 2004-01-14, 17:40   #10
TauCeti's Avatar
Mar 2003
Braunschweig, Germany

2·113 Posts

I (in germany) use a ELV EM 800 to measure.

Quite accurate and it measures real power, reactive power and apparent power for the whole computer system. It's not 100% accurate to measure CPU only, because increased CPU load normally also gererates increased thermal dissipation in the PSU and the mainboard power converters.

There is a link to a non-german device here somewhere in the forum but i *err* just can't find it...

The description of the device in your link does not contain any accuracy information. My EM 800 has a 0.1 W resolution and a 1% +- 3 digits accuracy whitch translates roughly to about 1.5% overall accuracy in the 100-150W range. But the EM 800 operates at 230V and costs 50 EUR (about 64$ today)
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