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PCI Express Configuration Settings#

PCI Express Config

SR-IOV Support

If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO Virtualization Support.

Options:

  1. Disabled – Default.
  2. Enabled.
PCIe 16x Slot Speed

Options:

  1. Auto – Default.
  2. Gen 1
  3. Gen 2
  4. Gen 3
  5. Gen 4
WMI Setting name Values SVP / SMP Req'd AMD/Intel
PCIe16xSlotSpeed Auto, Gen1, Gen2, Gen3, Gen4 yes Intel
ASPM Support

ASPM (Active State Power Management).

Options:

  1. Auto – configure ASPM automatically according to what the attached device supports in each PCI (Peripheral Component Interconnect) Express port. Default.
  2. Disabled – Disable ASPM support of all PCI Express ports.
WMI Setting name Values SVP / SMP Req'd AMD/Intel
ASPMSupport Disabled, Auto yes Intel
PCIe 16x Slot Speed

Options:

  1. Auto – Default.
  2. Gen 1
  3. Gen 2
  4. Gen 3
  5. Gen 4
WMI Setting name Values SVP / SMP Req'd AMD/Intel
PCIe16xSlotSpeed Auto, Gen1, Gen2, Gen3, Gen4 yes Intel
PCIe 4x Slot Speed

Options:

  1. Auto – Default.
  2. Gen 1
  3. Gen 2
  4. Gen 3
WMI Setting name Values SVP / SMP Req'd AMD/Intel
PCIe4xSlotSpeed Auto, Gen1, Gen2, Gen3 yes Intel
PCIe 1x Slot Speed

Options:

  1. Auto – Default.
  2. Gen 1
  3. Gen 2
  4. Gen 3
WMI Setting name Values SVP / SMP Req'd AMD/Intel
PCIe1xSlotSpeed Auto, Gen1, Gen2, Gen3 yes Intel