Supermicro 2028R-ACR24L User Manual page 62

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UPER TORAGE YSTEM 2028R-ACR24L User's Manual
dB), P5 (0.0/2.0 dB), P6 (0.0/2.5 dB), P7 (-6.0 /3.5 dB), P8 (-3.5/3.5 dB), and
P9 (0.0/3.5 dB).
Gen3 (Generation 3) DN RX Preset Hint
Use this item to set the Preset Hint mode for PCI-E Gen3 downstream receiving
(RX) from the master device to a slave device. The options are Auto, P0 (-6.0
dB), P1 (-7.0 dB), P2 (-8.0 dB), P3 (-9.0 dB), P4 (-10.0 dB) P5 (-11.0 dB), and
P6 (-12.0 dB).
Gen3 (Generation 3) Up TX Preset
Use this item to set the Preset mode for PCI-E Gen3 upstream transmitting (TX)
from a slave device to the master device.The options are Auto, P0 (-6.0/0.0 dB),
P1 (-3.5/0.0 dB), P2 (-4.5/0.0 dB), P3 (-2.5/0.0 dB), P4 (0.0/0.0 dB), P5 (0.0/2.0
dB), P6 (0.0/2.5 dB), P7 (-6.0/3.5 dB), P8 (-3.5/3.5 dB), and P9 (0.0/3.5 dB).
Non-Transparent Bridge PCIe Port Definition (Available on the Socket 1
PCIeD03F0 - Port 3A only)
Select Transparent Bridge to enable Transparent Bridge support for the PCI-E
port specified by the user. Please do not select NTB-RP for a legacy IIO device.
The options are Transparent Bridge, NTB to NTB, and NTB to RP.
Hide Port?
Select Yes to hide the PCI-E port specified from the OS. The options are No
and Yes.
IOAT (Intel® IO Acceleration) Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support, which
significantly reduces CPU overhead by leveraging CPU architectural improve-
ments 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 to enable Relaxed Ordering support which will allow certain
transactions to violate the strict-ordering rules of PCI bus for a transaction to
be completed prior to other transactions that have already been enqueued. The
options are Disable and Enable.
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 Intel VT for Directed I/O (VT-d)
Intel VT for Directed I/O (VT-d)
®
Select Enable to use 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 avail-
ability 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.
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Chapter 7: BIOS