4-26 Chapter 4: BIOS setup
4.4.8 USB Conguration
Legacy USB Support [Enabled]
Enables or disables Legacy USB device support. Auto option disables legacy
support if no USB devices are connected. DISABLE option will keep USB device
available only for EFI applications.
Conguration options: [Enabled] [Disabled] [Auto]
EHCI Hand-off [Disabled]
This is a workaround for 0ses without EHCI ownership change should be clained
by EHCI driver. Conguration options: [Disabled] [Enabled]
USB Hardware Delays and Time-outs
USB transfer time-out [20 sec]
The time-out value for control, bulk, and interrupt transfer.
Conguration options: [1 sec] [5 sec] [10 sec] [20 sec]
Device reset time-out [20 sec]
USB mass storage device start unit command time-out.
Conguration options: [10 sec] [20 sec] [30 sec] [40 sec]
Enabled 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.
USB Conguration
USB Devices:
1Keyboard, 1 Mouse, 3 Hubs
Legacy USB Support [Enabled]
EHCI Hand-off [Disabled]
USB Hardware Delays and Time-outs
USB transfer time-out [20 sec]
Device reset time-out [20 sec]
Mass Storage Devices
USB Ports Conguration
→←: Select Screen
↑↓: Select Item
Enter: Select Item
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save & Exit
ESC: Exit
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Advanced
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
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