User Manual

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3
Controlling CPU Speed
Windows XP controls the processor performance to reduce power consumption.
Do not control the processor performance, or connect/disconnect the AC
adapter while communicating, or reading/writing data. Otherwise your
computer may malfunction.
1. In the Power Options Properties dialog box, select Power Schemes tab.
2. Select an appropriate power scheme from the pull-down menu in Power schemes
field according to the table below, and click OK.
3. Close the Power Options Properties dialog box, then the Control Panel window.
Power Scheme Processor Performance
Using AC
Power
Always runs at highest performance state Home/Office Desk
Using Battery Performance state will be chosen based on CPU
demand
Using AC
Power
Performance state will be chosen based on CPU
demand
Portable/Laptop
Using Battery Performance state will be chosen based on CPU
demand
Using AC
Power
Performance state will be chosen based on CPU
demand
Presentation
Using Battery Always runs at the lowest performance state
Using AC
Power
Always runs at highest performance state Always On
Using Battery Always runs at highest performance state
Using AC
Power
Performance state will be chosen based on CPU
demand
Minimal Power
Management
Using Battery Performance state will be chosen based on CPU
demand
Using AC
Power
Performance state will be chosen based on CPU
demand
Max Battery
Using Battery Always runs at the lowest performance state