User Manual
Page 68
Select UEFI Setup Only to disable legacy USB support. his should be enabled for the complete USB keyboard legacy support for USB 2.0 devices. Port 60/64 Emulation Enable the support of I/O port 60h/64h emulation. 4.4.6 USB Coniguration H170M Pro4S Legacy USB Support Enable or disable Legacy OS Support for non-USB aware OS. *Enable this option if you encounter USB compatibility issues it is recommended to support USB devices under the UEFI setup and Windows/Linux operating systems only. If you install Windows 7. 63 English
Select UEFI Setup Only to disable legacy USB support. his should be enabled for the complete USB keyboard legacy support for USB 2.0 devices. Port 60/64 Emulation Enable the support of I/O port 60h/64h emulation. 4.4.6 USB Coniguration H170M Pro4S Legacy USB Support Enable or disable Legacy OS Support for non-USB aware OS. *Enable this option if you encounter USB compatibility issues it is recommended to support USB devices under the UEFI setup and Windows/Linux operating systems only. If you install Windows 7. 63 English