Supermicro SuperStorage Server 2028R-NR48N - Page 109

Chapter 7: AMI BIOS
7-13
 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) Conguration
QPI General Conguration
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 Conguration Base/Size
Link Frequency Select
Use this item to select the desired frequency for QPI Link connections. The
options 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.