Supermicro X13SCL-IF - Page 76

Super X13SCL-IF User's Manual
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PCIe Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1,
Gen2, Gen3, and Gen4.
CPU SLOT7 PCIe 5.0 x16
This feature indicates if PCIe 5.0 x16 is present.
PCI Express Root Port2
Use this feature to disable or enable the PCIe root port. The options are Disabled and
Enabled.
ASPM
Use this feature to set the Active State Power Management level. The options are Dis-
abled, L0s, L1, and L0sL1.
PCIe Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1,
Gen2, Gen3, Gen4, and Gen5.
Stop Grant Conguration
Use this feature to congure the stop grant conguration. The options are Auto and Manual.
Number of Stop Grant Cycles (Available when "Stop Grant Conguration" is set to
Manual)
Use this feature to set the number of stop-grant cycles. The default value is 1.
VT-d
Select Enabled to enable Intel Virtualization Technology support for Direct I/O VT-d
by
reporting the I/O device assignments to VMM through the DMAR ACPI Tables. This feature
o󰀨ers fully-protected I/O resource-sharing across the Intel platforms, providing you with
greater reliability, security and availability in networking and data sharing. The options are
Enabled and Disabled.
Control Iommu Pre-boot Behavior
Use this feature to enable the input-output memory management unit (IOMMU) in the pre-
boot environment if the Direct-Memory Access Remapping (DMAR) table is installed in
the driver execution environment (DXE) and if VTD_INFO_PPI is installed during pre-EFI
initialization (PEI). The options are Disable IOMMU and Enable IOMMU during boot.