Intel P4000RP Technical Product Specification - Page 148

When Legacy USB Support is Disabled, USB devices are

Page 148 highlights

BIOS Setup Interface Intel® Server Board S1200V3RP Comments: Information only. Displays the total number of USB devices of all types which have been detected in POST. Note: There is one USB keyboard and one USB mice detected from the BMC KVM function under this item even no USB devices connected to the system. Back to [USB Configuration Screen] - [Screen Map] 2. USB Controller Option Values: Enabled Disabled Help Text: [Enabled] - All on-board USB controllers are turned on and accessible by the OS. [Disabled] - All on-board USB controllers are turned off and inaccessible by the OS. Comments: When the USB controllers are Disabled, there is no USB IO available for either POST or the OS. In that case, all following fields on this screen are grayed out and inactive. Back to [USB Configuration Screen] - [Screen Map] 3. Legacy USB Support Option Values: Enabled Disabled Auto Help Text: Enables Legacy USB support. AUTO option disables legacy support if no USB devices are connected. Disable option will only keep USB Keyboard devices available for EFI applications. Comments: When Legacy USB Support is Disabled, USB devices are available only through OS drivers. If the USB controller setting is Disabled, this field is grayed out and inactive. Back to [USB Configuration Screen] - [Screen Map] 4. XHCI Pre-Boot Driver Option Values: Enabled Disabled 136 Revision 1.0

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BIOS Setup Interface
Intel® Server Board S1200V3RP
Comments:
Information only.
Displays the total number of USB devices of all
types which have been detected in POST.
Note: There is one USB keyboard and one USB mice detected from the BMC KVM
function under this item even no USB devices connected to the system.
Back to [USB Configuration Screen] — [Screen Map]
2. USB Controller
Option Values:
Enabled
Disabled
Help Text:
[Enabled] - All on-board USB controllers are turned on and accessible by the OS.
[Disabled] - All on-board USB controllers are turned off and inaccessible by the OS.
Comments:
When the USB controllers are Disabled, there is no USB IO
available for either POST or the OS. In that case, all following fields on this screen are
grayed out and inactive.
Back to [USB Configuration Screen] — [Screen Map]
3. Legacy USB Support
Option Values:
Enabled
Disabled
Auto
Help Text:
Enables Legacy USB support. AUTO option disables legacy support if no USB devices
are connected. Disable option will only keep USB Keyboard devices available for EFI
applications.
Comments:
When Legacy USB Support is Disabled, USB devices are
available only through OS drivers.
If the USB controller setting is Disabled, this field is grayed out and inactive.
Back to [USB Configuration Screen] — [Screen Map]
4. XHCI Pre-Boot Driver
Option Values:
Enabled
Disabled
Revision 1.0
136