DFI BT968 - Manual (Page 38)

www.dfi .com Chapter 4 BIOS Setup
38
Chapter 4
USB Configuration
This section is used to configure parameters of the USB device.
Legacy USB Support
Enabled
Enable legacy USB.
Auto
Disable support for legacy when no USB devices are connected.
Disabled
Keep USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSes without the XHCI hand-off support. The change of XHCI
ownership should be claimed by the EHCI driver.
EHCI Hand-off
This is a workaround for OSes without the EHCI hand-off support. The change of EHCI
ownership should be claimed by the EHCI driver.
USB Mass Storage Driver Support
Enable or disable the support of the USB Mass Storage Driver.
Enables Legacy USB
support. AUTO option
disables legacy support if
no USB devices are
connected. DISABLE
option will keep USB
devices available only for
EFI applications.
Aptio Setup Utility - Copyright (C) 2013 American Megatrends, Inc.
Version 2.16.1242 Copyright (C) 2013 American Megatrends, Inc.
USB Confi guration
USB Module Version
USB Devices:
1 Keyboard, 1 Hub
Legacy USB Support
XHCI Hand-off
EHCI Hand-off
USB Mass Storage Driver Support
Advanced
8.11.01
[Enabled]
[Enabled]
[Disabled]
[Enabled]
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
F4: Save & Reset
ESC: Exit
Important:
When installing Windows 7, only native USB 2.0 devices (USB port 0 to USB port 3)
can operate under DOS mode. Please refer to the following tables for more infomation
on the type of USB ports.
Operation
Environment
for Customers
DOS Windows 7 Windows 8.x Linux
OS Selection
in the BIOS
Advanced Menu
Windows 8.x Windows 7 Windows 8.x Windows 8.x
Available USB
ports
All
When installing Windows 7 fi rst
time, only native USB 2.0 ports
can work. Please refer to the
USB type in table 2 below.
All All
Table 1. OS Selection
Model Name BT968
USB 3.0 Native
USB 0 Native
USB 1 Native
USB 2 Native
USB 3 Native
USB 4 HSIC port 0
USB 5 HSIC port 1
USB 6 HSIC port 2
USB 7 HSIC port 3
Table 2. The Type of USB Ports