Supermicro SUPERSERVER 2028TP-HTR-SIOM User Manual page 61

SUPERSERVER 2028TP-HTR/HC0R/HC1R-SIOM USER'S MANUAL
 Intel VT for Directed I/O (VT-d)
Intel VT for Direct I/O (VT-d)
Intel VT for Directed I/O (VT-d)
®
Select Enable to use Intel Virtualization Technology support 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.
Coherency Support (Non-Isoch)
Select Enable for the Non-Iscoh VT-d engine to pass through DMA (Direct Memo-
ry Access) to enhance system performance. The options are Enable and Disable.
Coherency Support (Isoch)
Select Enable for the Iscoh VT-d engine to pass through ATS to enhance system
performance. The options are Enable and Disable.
QPI (Quick Path Interconnect) 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
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Link Speed Mode
Use this item to select the data transfer speed for QPI Link connections. The
options are Fast and Slow.
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. The options are Enable and Disable.
Link L1 Enable
Select Enable for Link L1 support. The options are Enable and Disable.
COD Enable (Available when the OS and the CPU support this feature)
Select Enable for Cluster-On-Die support to enhance system performance in
cloud computing. The options are Enable, Disable, and Auto.
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.
Isoc Mode
Select Enable for Isochronous support to meet QoS (Quality of Service) require-
ments. This feature is especially important for Virtualization Technology. The
options are Enable and Disable.
Memory Configuration
Enforce POR
Select Enabled to enforce POR restrictions on DDR4 frequency and voltage
programming. The options are Enabled and Disabled.
Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory
modules. The options are Auto, 1333, 1400, 1600, 1800, 1867, 2000, 2133,
2200, 2400, 2600, 2667, and Reserved (Do not select Reserved).
ECC Support
Select Enable to enable Error Checking & Correction (ECC) support for onboard
memory modules. The options are Auto, Enable and Disable.
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Chapter 7: BIOS