Dell Latitude X300 - Manual (Page 93)

To change additional Intel SpeedStep options:
1. Click Advanced and then click one of the following options:
l Disable Intel SpeedStep technology control
l Remove flag icon (from the notification area)
l Disable audio notification when performance changes
2. Click OK to accept any changes, and then click OK to close the Intel SpeedStep® technology window.
You can also change the Intel SpeedStep settings by right-clicking the flag icon in the notification area.