Asus TUF SABERTOOTH 990FX R3.0 SABERTOOTH 990FX R3.0 Users Manual English - Page 74

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

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3.6.5 USB Configuration The items in this menu allow you to change the USB-related features. Chapter 3 The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [Enabled] [Disabled] The USB devices can be used only for the BIOS setup program. [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Auto] Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. The following item appears only when you set Legacy USB Support to [Auto] or [Enabled]. Legacy USB3.0 Support [Enabled] [Disabled] Disables the function. [Enabled] Enables the support for USB 3.0 devices on legacy operating systems (OS). EHCI Hand-off [Disabled] [Disabled] Disables the function. [Enabled] Enables the support for operating systems without an EHCI hand‑off feature. SB USB Configuration Options for SB USB Configuration. USB PORT 1 ~ 4 [Enabled] Configuration options: [Disabled] [Enabled] USB PORT 11 ~ 14 [Enabled] Configuration options: [Disabled] [Enabled] 3-20 Chapter 3: BIOS Setup

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3-20
Chapter 3: BIOS Setup
Chapter 3
The
USB Devices
item shows the auto-detected values. If no USB device is detected, the
item shows None.
Legacy USB Support [Enabled]
[Disabled]
The USB devices can be used only for the BIOS setup program.
[Enabled]
Enables the support for USB devices on legacy operating systems (OS).
[Auto]
Allows the system to detect the presence of USB devices at startup. If
detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.
The following item appears only when you set
Legacy USB Support
to
[Auto]
or
[Enabled]
.
Legacy USB3.0 Support [Enabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for USB 3.0 devices on legacy operating systems
(OS).
EHCI Hand-off [Disabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for operating systems without an EHCI hand-off
feature.
SB USB Configuration
Options for SB USB Configuration.
USB PORT 1 ~ 4 [Enabled]
Configuration options: [Disabled] [Enabled]
USB PORT 11 ~ 14 [Enabled]
Configuration options: [Disabled] [Enabled]
3.6.5
USB Configuration
The items in this menu allow you to change the USB-related features.