DFI HR900-B - Manual (Page 55)

55
3
BIOS Setup
USB Confi guration
Control the USB EHCI
(USB 2.0) functions.
One EHCI controller must
always be enabled.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
EHCI1
EHCI2
[Enabled]
[Enabled]
Chipset
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
ESC: Exit
EHCI1 and EHCI2
These fi elds are used to enable or disable USB 2.0.
Enable or disable PCI
Express Clock Gating for
each root port.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
PCI Express Clock Gating [Enabled]
Chipset
 Select Screen
 Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous
Values
F3: Optimized Defaults
ESC: Exit
PCI Express Confi guration
PCI Express Clock Gating
Enables or disables PCI Express Clock Gating for each root port.