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OS X - Operating System General OS operation information and support

MacBook Pro - CPU Power saving features in oSX?

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kgeier82's Avatar
Member Since: Dec 01, 2006
Posts: 1,495
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Mac Specs: MBP 2.4/2GB/200HD/256 8600gt

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im just curious. you all probably have more of an idea than i do. How does osx handle the cpu clock when you go on battery? no matter what im doing, my new c2d mbp will stay at 2.17 when on battery. ive tried clicking on the battery icon in the top right corner, and setting it to "better batt life", and even custom.

is there a way to make it set the cpu clock lower? it seems windows does this easily on many notebooks. Im just curious as to what OSX can , and will do.

i was using CoreDuo TEmp to see my constant cpu freq. The freq didnt move, even when idling.

2.4ghz Unibody | Hitachi 320GB 7200 | 256MB 9600gt
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walmartconnect's Avatar
Member Since: Oct 13, 2006
Location: Blacksburg, VA
Posts: 724
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Mac Specs: 13'' Macbook w/ 2Ghz Core Duo, 2GB DDR2, 250GB HD, 10.5.4. iPod Touch.

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I don't really have any solid idea about this but I did recall hearing that the battery life (when using bootcamp) is much better in osx vs. windows due to osx's "power management" abilities. I'm sure that someone with more technical expertise can enlighten us though.
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Member Since: Dec 25, 2006
Location: Japan
Posts: 333
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Mac Specs: MBP 2.0Ghz

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Aparently, I read this on the intel forums. That it is "TECHNICALLY" possible to switch off a core to save batteries.
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