KBox E-420-R1K/V1K - User Guide, Rev. 1.1
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Figure 28: BIOS Advanced Menu --- USB Configuration
BIOS SETUP UTILITY
Main
Advanced
Power
Boot
Security
Save & Exit
USB Configuration
USB Devices:
→
←
: Select Screen
1 Keyboard
↑
↓
: Select Item
Enter: Select
Legacy USB Support
[Enabled]
+/-: Change Opt.
XHCI Hand-off
[Enabled]
F1: General Help
USB Mass Storage Driver Support
[Enabled]
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
Version 2.20.1274. Copyright (C) 2020, American Megatrends, Inc.
Feature
Option
Description
Legacy USB Support
[Enabled], [Disabled],
[Auto]
Enable Legacy USB support.
AUTO option disables legacy support if no USB devices are
connected.
XHCI Hand-off
[Enabled], [Disabled]
This is a workaround for OSes without XHCI hand-off support.
The XHCI ownership change should be claimed by XHCI driver.
USB Mass Storage
Driver Support
[Disabled], [Enabled]
Enable / disable USB Mass Storage Driver Support.