User`s manual

BIOS Setup 3-19
OnChip USB Controller:
Two options are available: Enabled and Disabled. The default setting is Enabled. This motherboard
provides two Universal Serial Bus (USB) ports, thus supporting USB devices. If you don't want to use
USB devices, set it to Disabled, then the item USB Keyboard Support Via, USB Mouse Support Via, and
USB 2.0 Controller will also be disabled.
 USB Keyboard Support Via:
Two options are available: OS and BIOS. The default setting is OS. If you want to use USB keyboard in
DOS environment, please set it to BIOS.
 USB Mouse Support Via:
Two options are available: OS and BIOS. The default setting is OS. If you want to use USB mouse in
DOS environment, please set it to BIOS.
 USB 2.0 Controller:
Two options are available: Disabled or Enabled. The default setting is Enabled. This motherboard has the
built-in USB 2.0 chipset that can support USB 2.0 specifications. If you set this controller to Enabled, you
can use USB 2.0 functions.
 Back to Integrated Peripherals Setup Menu:
SuperIO Device:
Press <Enter> key to enter the SuperIO Device menu.
Onboard FDD Controller:
Two options are available: Enabled and Disabled. The default setting is Enabled. You can enable or
disable the onboard FDD controller.
Onboard Serial Port 1:
This is used to specify the I/O address and IRQ of Serial Port 1. Six options are available: Disabled 
3F8/IRQ4  2F8/IRQ3  3E8/IRQ4  2E8/IRQ3  AUTO. The default setting is 3F8/IRQ4.
Onboard Serial Port 2:
This is used to specify the I/O address and IRQ of Serial Port 2. Six options are available: Disabled 
User’s Manual