Arbor Technology EmETXe-i88U4-D1508, User Manual

Page: 37 / 60

- 29 -
BIOS
4.2.6 USB Configuration
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
Version 2.15.1236. Copyright (C) 2012 American Megatrendes, Inc.
USB Configuration
USB Module Version 13
USB Devices:
1 EHCI, 1 XHCI
USB Devices:
1 Keyboard, 3 Hubs
Legacy USB Support
XHCI Hand-off
USB hardware delays and time-outs:
USB Transfer time-out
Device reset time-out
Device power-up delay
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.
→←: Select Screen
↓↑: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F9: Optimized Defaults
F10: Save and Exit
ESC: Exit
Advanced
[Enabled]
[Disabled]
[20 sec]
[20 sec]
[Auto]
Aptio Setup Utility - Copyright (C) 2019 American Megatrends, Inc.
Version 2.19.1269. Copyright (C) 2019 American Megatrendes, Inc.
Setting Description
Legacy USB
Support
Sets legacy USB support.
► Options: Enabled (default), Disabled and Auto .
AUTO
option disables legacy support if no USB devices are
connected.
Disable option will keep USB devices available only for EFI
applications.
XHCI Hand-off
Enable (default) or Disable XHCI Hand-off
This is a workaround for OSes without XHCI hand-off
support. The XHCI ownership change should be claimed
by XHCI driver.
USB hardware delay and time-out