Sony VGN-A600P Manual

Page of 269
Why is the sound of my computer's fan so loud? 
The computer's fan may be running at a high speed to cool the CPU. By lowering the CPU speed, you also lower the speed
and noise level of the computer's fan. You can use the power schemes to lower the CPU speed. 
1.
Click Start on the Windows
®
 taskbar, and click Control Panel
2.
Click Performance and Maintenance, and click Power Options. The Power Options Properties window
appears. 
3.
Select Portable/Laptop in the Power schemes box. 
4.
Click Apply
5.
Click OK
 A vailable on s elec ted models  only. 
Page 191