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Sony Notebook User Guide
Getting help
99
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About USB devices
There is noise when I am listening to music through USB speakers/headphones
To stop the noise, proceed as follows:
1 Right-click the CPU icon in the system tray and click Edit/Create Profiles… from the menu.
The Profile Editor window appears.
2 Double-click CPU Control – Performance (or Adaptive or Battery Life) on the right of the screen.
The CPU Control list appears with a check mark on the current setting.
3 Click Performance or Battery Life.
Select Performance if you use applications that take much of the CPU.
4 From the File menu, click Save.
5 From the File menu, click Exit.