Chapter 7: BIOS
7-13
7-12
S
UPER
S
TORAGE
S
YSTEM 6048R-E1CR60N/L User's Manual
IOU1 (IIO2 PCIe Port 3)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and
Auto
.
IIO2 Port 3A Link Speed
This item configures the link speed of a PCI-E port specified by the user. The
options are Gen 1 (Generation 1) (2.5 GT/s), Gen 2 (Generation 2) (5 GT/s),
and
Gen 3 (Generation 3) (8 GT/s).
IOAT Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology), which signifi
-
cantly reduces CPU overhead by leveraging CPU architectural improvements
and freeing the system resource for other tasks. The options are
Enable
and
Disable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are
Disable
and Enable.
Relaxed Ordering
Select Enable for relaxed ordering support, which will allow certain transactions
to be processed and completed prior to other transactions that have already been
queued by overriding the strict ordering rules of PCI processing. The options
are
Disable
and Enable.
Intel VT for Directed I/O (VT-d)
Intel VT for Directed I/O (VT-d)
Select Enable to use the Intel Virtualization Technology for Direct I/O VT-d
support
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 for Interrupt Remapping support to enhance system performance.
The options are
Enable
and Disable.
QPI (Quick Path Interconnect) Configuration
QPI General Configuration
QPI Status
The following information will display:
•
Number of CPU
•
Number of II0
•
Current QPI Link Speed
•
Current QPI Link Frequency
•
QPI Global MMIO Low Base/Limit
•
QPI Global MMIO High Base/Limit
•
QPI PCIe Configuration Base/Size
Link Frequency Select
Use this item to select the desired frequency for QPI Link connections. The op-
tions are 6.4GB/s, 8.0GB/s, 9.6GB/s,
Auto,
and Auto Limited.
Link L0p Enable
Select Enable for Link L0p support to reduce power consumption. The options
are
Enable
and Disable.
Link L1 Enable
Select Enable for Link L1 support to reduce power consumption. The options
are
Enable
and Disable.
Early Snoop (Available when the OS and the CPU support this feature)
Select Enable for Early Snoop support to enhance system performance. The
options are Enable, Disable,
and
Auto
.
Home Dir Snoop with IVT-Style OSB (Available when the OS and the
CPU support this feature)
Select Enable for Home-Direct Snoop with IVT-Style_OSB support to enhance
system performance. The options are Enable, Disable,
and
Auto
.
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