Asus DiGiMatrix - Manual (Page 133)

5-15 ASUS DiGiMatrix
PS/2 Mouse Function Control [Auto]
The default setting [Auto] allows the system to detect a PS/2 mouse at
startup. If a mouse is detected, the BIOS assigns IRQ12 to the PS/2
mouse. Otherwise, IRQ12 can be used for expansion cards. When you set
this field to [Enabled], BIOS reserves IRQ12, whether or not a PS/2 mouse
is detected at startup. Configuration options: [Auto] [Enabled]
USB Legacy Support [Auto]
This motherboard supports Universal Serial Bus (USB) devices. The
default of [Auto] allows the system to detect a USB device at startup. If
detected, the USB controller legacy mode is enabled. If not detected, the
USB controller legacy mode is disabled.
When you set this field to [Disabled], the USB controller legacy mode is
disabled whether or not you are using a USB device. Configuration
options: [Auto] [Disabled] [Enabled]
Radio Mode Location [Europe]
This item allows you to select the radio system in your location. This item
is set to [Europe] by default. Configuration options: [Europe] [U.S.] [Japan]
[East Europe]