Technical information

Chapter 2 47
Integrated Peripherals
These options display items that define the operation of peripheral components on the system’s
input/output ports.
USB Controller
You can enable or disable the onboard USB controller. We recommend users to keep the default
value. Disabling it might cause the USB devices not to work properly.
USB 2.0 Controller
This item enables or disables the onboard USB 2.0.
USB Keyboard Support
You can enable this item if you want to use a keyboard connected through the USB port in a legacy
operating system (such as DOS) that does not support Plug and Play.
Azalia/AC97 Audio Select
It serves to enable or disable the onboard Azalia/AC97 audio function. You can disable this item if
you are going to install a PCI audio add-on card.