Sony PCG-SRX99 VAIO User Guide (primary manual) User Manual page 168

There is noise distortion while listening to music with USB speakers or USB headphones.
Use the preinstalled PowerPanel
1.
Right-click the CPU: Performance Profile
The AC Power Profile Editor dialog box appears.
2.
In the left portion of the window, click the power management profile you want to set. Maximum Battery Life is
the default selection when your computer runs on battery power.
3.
In the right portion of the window, double-click CPU Control in the System folder. A CPU control options list
appears.
4.
Click Performance.
5.
Click the File menu, and select Save.
6.
Close the AC Power Profile Editor window.
software to set the CPU control to Performance. Follow these steps:
icon on the bottom right of the taskbar, and click Edit/Create Profiles.
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