Table Of Contents

USB Configuration Submenu

    Last Modified: August 30, 2018

    The USB configuration submenu contains the USB host ports settings. The factory default settings provide the most compatible and optimal configuration.

    • Dual Role Type-C Port FW Ver— This item shows the firmware version for the dual role type-C port.
    • Display Port Type-C FW Ver— This items shows the firmware version for the display port type-C.
    • USB Devices—This item lists the total number of devices detected in the system, categorized by device type.
    • Legacy USB Support—This setting specifies whether legacy USB support is enabled. Legacy USB support refers to the ability to use a USB keyboard and mouse during system boot or in a legacy operating system such as DOS. Valid options are Enabled, Disabled, and Auto. The default value is Disabled.
    • Overcurrent Reporting—This setting allows the BIOS to notify the operating system about any USB ports that source too much current. The default value is Enabled. Hardware overcurrent protection is always active and cannot be disabled.
    • USB Transfer Timeout—This setting specifies the timeout value for Control, Bulk, and Interrupt USB transfers. The default value is 20 seconds.
    • Device Reset Timeout—This setting specifies the number of seconds the POST waits for a USB mass storage device to start. The default value is 20 seconds.
    • Device Power-Up Delay—This setting specifies the maximum time a device takes before enumerating. Valid options are Auto and Manual. The default value is Auto. When set to Auto, a root port is granted 100 ms, and the delay value of a hub port is assigned from the hub descriptor.

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