DFI CM901-B - Manual (Page 39)

www.dfi .com Chapter 4 BIOS Setup
39
Chapter 4
USB Configuration
This section is used to configure USB.
Legacy USB Support
Enabled
Enables legacy USB.
Auto
Disables support for legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.
EHCI Hand-off
This is a workaround for OSes that does not support EHCI hand-off. The EHCI owner-
ship change should be claimed by the EHCI driver.
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be abled for the complete USB
keyboard legacy support for non-USB aware OSes.
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) 2011 American Megatrends, Inc.
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
USB Confi guration
USB Devices:
1 Keyboard, 1 Mouse
Legacy USB Support
EHCI Hand-off
Port 60/64 Emulation
Advanced
[Enabled]
[Disabled]
[Enabled]
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
Onboard VGA Setting
This section displays the onboard VGA setting.
NP PCIE Connect Type
(Display device)
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
Display Port3 TO VGA Mode
Display Port2 TO LVDS Mode
Advanced
[CRT(VGA)]
[DP]
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
Display Port3 TO VGA Mode
This field is used to select the mode of the onboard display port3. The options are
CRT(VGA), Display Port or Disabled Mode.
Display Port2 TO LVDS Mode
This field is used to select the mode of the onboard display port2. The options are
LVDS or Display Port Mode.