Service Guide

BIOS Setup Utilities
Intel
®
Server System P4000IP and Intel
®
Workstation System P4000CR Service Guide 161
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.
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.
4. Port 60/64 Emulation
Option Values: Enabled
Disabled
Help Text:
Enables I/O port 60h/64h emulation support.
This may be needed for legacy USB keyboard support when using an OS that is USB
unaware.
Comments: If the USB controller setting is Disabled, this field is grayed out and inactive.
5. Make USB Devices Non-Bootable
Option Values: Enabled
Disabled
Help Text:
Exclude USB in Boot Table.
[Enabled]- This will remove all USB Mass Storage devices as Boot options.
[Disabled] - This will allow all USB Mass Storage devices as Boot options.
Comments: This is a security option. When Disabled, the system cannot be booted
directly to a USB device of any kind. USB Mass Storage devices may still be used for data
storage.
If the USB controller setting is Disabled, this field is grayed out and inactive.
6. Device Reset Timeout