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This question already has an answer here:

I'm new in Ubuntu 13.04 and wondering what I should do to get the lowest power consumption settings for an Ivy Bridge CPU.

Are there any changes to make in the terminal or something?

marked as duplicate by Luis Alvarado Jun 14 '13 at 12:03

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You can use powertop, which is not specifically for Ivy Bridge, but in general will help. powertop overview To install, open a terminal and enter

sudo apt-get install powertop
sudo powertop

It will give you some interactive way to look high power consumers.

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