Asus Z170-WS Z170-WS User Guide for English - Page 114

USB Configuration, Legacy USB Support [Enabled], XHCI Hand-off [Disabled]

Page 114 highlights

3.6.6 USB Configuration The items in this menu allow you to change the USB-related features. Chapter 3 The Mass Storage Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [Enabled] [Enabled] Your system supports the USB devices in legacy operating systems. [Disabled] Your USB devices can be used for BIOS setup only and cannot be recognized in the boot devices list. [Auto] Your system automatically detects the presence of USB devices at startup. If any USB devices are detected, the legacy USB support is enabled. XHCI Hand-off [Disabled] [Enabled] Enables the support for operating systems without an XHCI hand‑off feature. [Disabled] Disables the XHCI Hand-off support. USB Single Port Control This item allows you to enable or disable the individual USB ports. Refer to section 1.2.2 Motherboard layout for the location of the USB ports. 3-40 Chapter 3: BIOS Setup

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3-40
Chapter 3: BIOS Setup
Chapter 3
3.6.6
USB Configuration
The items in this menu allow you to change the USB-related features.
The
Mass Storage Devices
item shows the auto-detected values. If no USB device is
detected, the item shows
None
.
Legacy USB Support [Enabled]
[Enabled]
Your system supports the USB devices in legacy operating systems.
[Disabled]
Your USB devices can be used for BIOS setup only and cannot be
recognized in the boot devices list.
[Auto]
Your system automatically detects the presence of USB devices at startup.
If any USB devices are detected, the legacy USB support is enabled.
XHCI Hand-off [Disabled]
[Enabled]
Enables the support for operating systems without an XHCI hand-off
feature.
[Disabled]
Disables the XHCI Hand-off support.
USB Single Port Control
This item allows you to enable or disable the individual USB ports.
Refer to section
1.2.2 Motherboard layout
for the location of the USB ports.