Chapter 4: BIOS
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Intel® VT for Directed I/O (VT-d)
IIO-PCIE Express Global Options
The section allows the user to con
fi
gure the following PCI-E global options:
PCI-E Completion Timeout Disable
Select Yes to disable the PCI-E Completion Time-out settings. The options are
Yes
, No,
and Per-Port.
South Bridge
The following South Bridge information will display:
•
USB Module Version
•
USB Devices
Legacy USB Support
Select Enabled to support onboard legacy USB devices. Select Auto to disable legacy support
if there are no legacy USB devices present. Select Disable to have all USB devices available
for EFI applications only. The options are
Enabled,
Disabled and Auto.
XHCI Hand-Off
This is a work-around solution for operating systems that do not support XHCI (Extensible
Host Controller Interface) hand-off. The XHCI ownership change should be claimed by the
XHCI driver. The options are Enabled and
Disabled
.
Port 60/64 Emulation
Select Enabled for I/O port 60h/64h emulation support, which in turn, will provide complete
legacy USB keyboard support for the operating systems that do not support legacy USB
devices. The options are
Enabled
and Disabled.
Server ME (Management Engine) Con
fi
guration
This feature displays the following system ME con
fi
guration settings.
General ME Con
fi
guration
Operational Firmware Version
Backup Firmware Version
Recovery Firmware Version
ME Firmware Status #1/ME Firmware Status #2
Current State
Error Code
