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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

iBook Power Options


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chuckalicious

 
Member Since: Jan 09, 2006
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Can anyone tell me what the different power options in OS X Tiger on the iBook G4 do please?

There are the following options:

Performance
Reduced
etc etc

I've noticed my iBook gets quite warm, and as far as I'm aware it's on the default setting. I read elsewhere that changing it to "reduced" will help with that, but will that reduce the performance of the laptop?
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surfwax95

 
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Performance: Does not set a cap on the processor's limit, screen brightness all the way up, hard drive does not sleep until told.

Reduced: Sets a ~75% cap on the processor, screen brightness reduced, hard drives sleep every 5 minutes or so (if not in use).

Battery Saver: Sets a ~50% cap on the processor, screen brightness on 3 clicks, screen turns off every 3 minutes, hard drives sleep annoyingly too often, the computer will sleep in 5 minutes.

*These are just estimates, and from what I've noticed using the SysStat widget (i.e. my processor will never get over 50% when BatterySaver is on.)*

Yes, "Reduced" will increase your battery life by ~15%, and probably reduce the heat dissipation, but yes, performance will suffer.

I try to Command+Shift+/ when I can.
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macEfan

 
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edit- I have been beaten to to info... :spook: feel free to delete this post please

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chuckalicious

 
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Thanks, I'll play about and see what gives the best balance of performance/heat
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