Sony VAIO PCG-X18 Software Manual page 24

Customizing Your Notebook Computer
PowerPanel
Viewing the PowerPanel icon
The PowerPanel icon (displayed in the toolbar) indicates the level of performance of
the CPU.
Displayed icons and meanings :
PowerPanel icon CPU performance
Battery Optimized Performance- Used with a battery.
The CPU operates at "Low Speed".*
Maximum Performance- Used with the AC adapter.
The CPU operates at "High Speed"*
* For details, please refer to the Specifications chapter.
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