DFI CP100-NRM - Manual (Page 71)

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BIOS Setup
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
ownership change should be claimed by the EHCI driver.
Device Reset Timeout
Selects the USB mass storage device start unit command timeout.
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.
BIOS SETUP UTILITY
Version 2.00.1201. Copyright (C) 2009 American Megatrends, Inc.
USB Configuration
USB Devices:
2 Hubs
Legacy USB Support
EHCI Hand-off
Device Reset Timeout
Advanced
[Enabled]
[Enabled
[20 Sec]
→ ←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save ESC: Exit