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Chapter 4: BIOS setup
Legacy USB Support [Enabled]
Allows you to enable or disable the support for legacy USB devices. Setting to [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.
Conguration options: [Disabled] [Enabled] [Auto]
USB3.0 Support [Enabled]
Enables or disables the USB3.0 (XHCI) controller support. Conguration options: [Disabled]
[Enabled]
XHCI Hand-off [Enabled]
This functions as a workaround for OSes without XHCI hand-off support. Conguration options:
[Disabled] [Enabled]
EHCI Hand-off [Enabled]
This functions as a workaround for OSes without EHCI hand-off support. Conguration options:
[Disabled] [Enabled]
USB Mass Storage Driver Support [Enabled]
This allows you to enable or disable the USB Mass Storage driver support. Conguration
options: [Disabled] [Enabled]
Port 60/64 Emulation [Enabled]
This allows you to enable the I/O port 60h/64h emulation support. This should be enabled for
the complete USB keyboard legacy support for non-USB aware OSes. Conguration options:
[Disabled] [Enabled]
USB transfer time-out [20 sec]
Allows you to select the USB transfer time-out value. Conguration options: [1 sec] [5 sec] [10
sec] [20 sec]
Device reset time-out [20 sec]
Allows you to select the USB device reset time-out value. Conguration options: [10 sec]
[20 sec] [30 sec] [40 sec]
Device power-up delay [Auto]
This allows you to set the maximum time the device will take before it properly reports itself to
the Host Controller. Conguration options: [Auto] [Manual]
When Device power-up delay is set to [Manual], use the <+> and <-> keys to adjust the values.
The values range from 1 to 40 with a one-second interval.
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