Gigabyte GA-MA74GMT-S2 - Usb Keyboard Support

BIOS Setup - 46 -
Onboard Audio Function
Enables or disables the onboard audio function. (Default: Enabled)
If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to
Disabled.
Legacy USB storage detect
 Determineswhether to detect USB storagedevices, including USB ash drivesandUSB hard drives
during the POST. (Default: Enabled)
Onboard Serial Port 1
 EnablesordisablestherstserialportandspeciesitsbaseI/Oaddressandcorrespondinginterrupt.
Options are: Auto, 2F8/IRQ3, 3F8/IRQ4(default), 3E8/IRQ4, 2E8/IRQ3, Disabled.
OnChip USB Controller
Enables or disables the integrated USB controller. (Default: Enabled)
Disabled will turn off all of the USB functionalities below.
USB EHCI Controller
Enables or disables the integrated USB 2.0 controller. (Default: Enabled)
USB Keyboard Support
Allows USB keyboard to be used in MS-DOS. (Default: Enabled)
USB Mouse Support
Allows USB mouse to be used in MS-DOS. (Default: Disabled)