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Chapter 3: BIOS Setup
USB Configuration
This section is used to configure the USB.
Aptio Setup Utility - Copyright (C) 2017 American Megatrends, Inc.
Advanced
USB Configuration
USB Module Version
16
USB Controllers:
1 XHCI
USB Devices:
1 Keyboard, 1 Mouse
Legacy USB Support
[Enabled]
XHCI Hand-off
[Enabled]
USB Mass Storage Driver Support
[Enabled]
Port 60/64 Emulation
[Disabled]
USB hardware delays and time-outs:
USB transfer time-out
[20 sec]
Device reset time-out
[20 sec]
Device power-up delay
[Auto]
Version 2.18.1263. Copyright (C) 2017 American Megatrends, Inc.
Legacy USB Support
Enable Enables Legacy USB.
Auto
Disables support for Legacy when no USB devices are connected.
Disable Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSs that does not support XHCI hand-off. The
XHCI ownership change should be claimed by the XHCI driver.
Copyright © 2022 NEXCOM International Co., Ltd. All Rights Reserved.
USB Mass Storage Driver Support
Enables or disables USB mass storage driver support.
Port 60/64 Emulation
Enables the 60h/64h I/O port emulation. Enable this to fully support USB
keyboard legacy for non-USB OSes.
Enables Legacy USB support.
AUTO option disables legacy
support if no USB devices are
connected. DISABLE option will
USB Transfer Time-out
keep USB devices available
only for EFI applications.
The time-out value for control, bulk, and interrupt transfers.
Device Reset Time-out
Selects the USB mass storage device's start unit command timeout.
Device Power-up Delay
→←: Select Screen
Maximum time the value will take before it properly reports itself to the Host
↑↓: Select Item
Enter: Select
Controller. "Auto" uses default value: for a Root port it is 100 ms, for a Hub
+/-: Change Opt.
F1: General Help
port the delay is taken from Hub descriptor.
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
ESC: Exit
31
NEX 912P User Manual
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