Asus PRIME X570-P X570 Series BIOS Manual English - Page 32

PCI Subsystem Settings

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1.6.6 PCI Subsystem Settings The items in this menu allow you to set PCI, PCI-X, and PCI Express settings. SR-IOV Support This option enables or disables Single Root IO Virtualization Support if the system has SRIOV capable PCIe devices. Configuration options: [Disabled] [Enabled] 1.6.7 USB Configuration The items in this menu allow you to set PCI, PCI-X, and PCI Express settings. 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 [Enabled] Enables the support for operating systems without an XHCI hand‑off feature. [Disabled] Disables the XHCI Hand-off support. USB Device Enable This item allows you to enable or disable USB devices. Configuration options: [Disabled] [Enabled] 32 PRIME/PRO/TUF GAMING X570 Series BIOS Manual

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PRIME/PRO/TUF GAMING X570 Series BIOS Manual
1.6.6
PCI Subsystem Settings
The items in this menu allow you to set PCI, PCI-X, and PCI Express settings.
SR-IOV Support
This option enables or disables Single Root IO Virtualization Support if the system has SR-
IOV capable PCIe devices.
Configuration options: [Disabled] [Enabled]
1.6.7
USB Configuration
The items in this menu allow you to set PCI, PCI-X, and PCI Express settings.
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
[Enabled]
Enables the support for operating systems without an XHCI hand-off
feature.
[Disabled]
Disables the XHCI Hand-off support.
USB Device Enable
This item allows you to enable or disable USB devices.
Configuration options: [Disabled] [Enabled]