Abit SI-1Ns40 User Manual page 39

BIOS Setup
IDE Bus Master:
This option enables or disables the IDE bus mastering capability under the DOS
environment.
Onboard IDE-1 Controller
This item enables or disables the onboard IDE-1 controller.
Compact Flash (CF1)
This item enables or disables the onboard CF1 controller.
Onboard PCI Device:
Click <Enter> key to enter its submenu:
USB Controller:
This option enables or disables the USB controller.
USB 2.0 Controller:
This option enables or disables the USB 2.0 controller.
USB Keyboard Support:
This item allows you to select [BIOS] for using USB keyboard in DOS environment,
or [OS] in OS environment.
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User's Manual