DFI CD905-B series - Manual (Page 38)

www.dfi .com Chapter 4 BIOS Setup
38
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 own-
ership change should be claimed by the EHCI driver.
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be enabled for the com-
plete 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
Port60/64 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 ATA Controller Configuration
Enables or disables the onboard ATA controller.
Select an operative
mode for ATA con-
troller.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Version 2.02.1205. Copyright (C) 2010 American Megatrends, Inc.
PATA Primary Master
PATA Primary Slave
ATA Controller
Advanced
Not Present
Not Present
[IDE mode]
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit