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Possible Duplicate:
How can I calculate power consumption of my PC in Watt?

I need to investigate how much power my Linux machine uses per week. I can take a look at the PSU but I would like to know how to calculate the average use of power it takes.

I also need to know how much power a CRT screen use per week.

Do I need to check the PSU Watt unit and Screen Watt usage and just add both to have the results?

P.S. My question is not related to: How to choose a UPS / calculate power for a new PC

Community
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r0ca
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  • possible duplicate: http://superuser.com/questions/123009/how-can-i-calculate-power-consumption-of-my-pc-in-watt – quack quixote Apr 06 '10 at 19:49
  • All of them are not related to my question. Maybe I was not clear but I need to know how to calculate, with the Watt info of my PSU, the average use of it for a week. – r0ca Apr 06 '10 at 19:55
  • the answers to [123009](http://superuser.com/questions/123009/how-can-i-calculate-power-consumption-of-my-pc-in-watt) are exactly the answers that you will receive here. – quack quixote Apr 06 '10 at 20:13
  • My bad. I did not read 123009 completely. Thanks for the info. I have to say that I bought the Kill a Watt thing... – r0ca Apr 06 '10 at 21:27
  • that's ok, it was in rough shape and had been incorrectly closed-as-dupe of the calculate-power-supply-capacity questions. hopefully it's a little better now; thanks for making me take another look. – quack quixote Apr 06 '10 at 22:35

2 Answers2

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Use a Kill A Watt or similar device. Just plug it in and set it to display total kWh.

Velociraptors
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The only way to do it is to measure the power - you can get cheap power meters these days for 10 - 20 Euros (or USD). Measure the power at idling and when the computer is busy. Then convert this to total kWh per week or whatever.

Paul R
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