ROG STRIX Z490-F BIOS Manual
51
The
Mass Storage Devices
item shows the auto-detected values. If no USB device is
detected, the item shows
None
.
Legacy USB Support
[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
This item is set to
[Disabled]
by default for the EHCI (enhanced host controller interface)
support by XHCI drivers in operating systems.
[Disabled]
Support XHCI by XHCI drivers for operating systems with XHCI support.
[Enabled]
Support XHCI by BIOS for operating systems without XHCI support.
USB Single Port Control
This item allows you to enable or disable the individual USB ports.
Refer to section
Motherboard layout
and
Rear I/O connection
in your motherboard’s
user manual for the location of the USB ports.
6.9
USB Configuration
The items in this menu allow you to change the USB-related features.
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