User`s guide

2-20 User’s Guide
IDE Controller
Set this parameter to
Primary
to enable only the primary IDE
controller;
Secondary
to enable only the secondary IDE controller;
Both
to enable both primary and secondary IDE controller; or
Disabled
to disable all IDE controllers.
PS/2 Mouse Controller
This parameter enables or disables the onboard PS/2 mouse
controller.
USB Host Controller
This parameter lets you enable or disable the USB controller on board.
When enabled, it activates the USB function of the system. When
disabled, it deactivates the function.
USB LEGACY MODE
This function, when enabled, lets you use a USB keyboard in a DOS
environment. Set this to
Disabled
to deactivate the USB keyboard
function in DOS environment. This parameter is configurable only if
the USB Host Controller parameter is enabled.
Onboard Audio Chip
This parameter lets you enable or disable the onboard audio controller.
If you installed an audio card into your system, you must disable this
parameter for the card to work properly.