Asus M3N78-VM - Manual (Page 12)

User Guide
VT1708A VIA HD Audio Adeck For Windows 2000, Windows XP & Server 2003
12
The headphone volume controls are as shown in Figure 6. To switch back to the speaker volume controls,
click on the speaker icon at the bottom-right corner.
Click here to return to speaker control
Headphone Volume Headphone Test
Figure 6 - Headphone Volume Setting in Speaker Control Panel