How to Change the Processor Speed in a MacBook Pro
The increasing power of computer processors make it possible to run incredibly complex programs at lightning speeds, but it comes with a cost. Greater processing speed requires greater power needs, draining the battery in your MacBook Pro faster than ever before. When you are on the go, using your MacBook on batteries for basic Internet access, the massive power of your CPU is an unnecessary burden on your battery. Reducing the processor speed is a good way to conserve battery power when you are only performing minimally intensive computer functions.
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Instructions
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Launch the "System Preferences" panel by selecting "Apple Menu," and then "System Preferences."
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Select "Energy Saver."
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Check "Better Battery Life" to reduce CPU usage levels. This will effectively reduce the processor speed so as to use less battery power.
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Tips & Warnings
There are other methods for reducing the processor speed on a MacBook Pro but these methods are potentially dangerous to your computer and at the least will void the warranty. Ultimately, the only safe and effective way to reduce processor speed is through the Energy Saver panel in System Preferences.
