Chapter 6: BIOS
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PCI-E Port Link Max
•
PCI-E Port Link Speed
Link Speed
Use this item to select the PCI-E link speed for the PCI-E port specified by the user.
The options for CPU-PCH DMI port are
Auto
, GEN1 (2.5 GT/s), and GEN2 (5 GT/s).
The options for Onboard LAN are Auto, GEN1 (2.5 GT/s),
GEN2 (5 GT/s)
, and GEN3
(8 GT/s). The options for CPU1 Slot1 X8 are
Auto
, GEN1 (2.5 GT/s), GEN2 (5 GT/s),
and GEN3 (8 GT/s). CPU1 Slot2 X16 port are
Auto
, GEN1 (2.5 GT/s), GEN2 (5 GT/s),
and GEN3 (8 GT/s).
IOAT Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology), which will significantly
reduce CPU overhead by leveraging CPU architectural features to free the system re-
source up for other tasks. The options are
Disable
and Enable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are
Disable
and
Enable.
Disable TPH
Select Enable to de-activate TLP Processing Hint support. The options are Enable and
Disable
.
Intel VT for Directed I/O (VT-d)
Intel VT for Directed I/O (VT-d)
Select Enable to enable Intel Virtualization Technology support for Direct I/O VT-d by
reporting the I/O device assignments to the VMM (Virtual Machine Monitor) through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource sharing across Intel
platforms, providing greater reliability, security and availability in networking and data-
sharing. The options are
Enable
and Disable.
Interrupt Remapping
Select Enable to support Interrupt Remapping to enhance system performance. The options
are
Enable
and Disable.
