7-3 onboard super io function – Jetway Computer NC9MGL User Manual

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The settings are: [FullSpeed]; [HiSpeed].
BIOS XHCI Hand Off
The optional settings are: Enabled; Disabled.
USB Keyboard Legacy/Mouse Legacy /Storage Legacy Support
Use these items to enable or disable legacy support for USB keyboard/mouse/ mass
storage devices.The settings are: [Enabled], [Disabled].

3-7-3 Onboard Super IO Function

Serial Port 1/2 Address
This item allows BIOS to select base addresses for serial port 1/2.

Serial Port 2 RS485 Select
The optional settings

are：[Disabled(RS232)]; [Enabled(RS485)].

Parallel Port Address
Use this item to allow BIOS to select parallel port base adresses.