ASROCK Z790 Series Setup Manual page 66

SR-IOV Support
If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO
Virtualization Support.
Configuration options: [Enabled] [Disabled]
DMI Link Speed
Allows you to configure DMI Slot Link Speed.
Configuration options: [Gen1] [Gen2] [Gen3] [Gen4]
PCIE1 Link Speed
Allows you to configure PCIE1 Slot Link Speed. Auto mode is optimizing for overclocking.
Configuration options: [Auto] [Gen1] [Gen2] [Gen3] [Gen4] [Gen5]
depending on your motherboard.)
PCIE2 Link Speed
Allows you to configure PCIE2 Slot Link Speed. Auto mode is optimizing for overclocking.
Configuration options: [Auto] [Gen1] [Gen2] [Gen3] [Gen4] [Gen5]
depending on your motherboard.)
PCIE3 Link Speed
Allows you to configure PCIE3 Slot Link Speed. Auto mode is optimizing for overclocking.
Configuration options: [Auto] [Gen1] [Gen2] [Gen3] [Gen4]
your motherboard.)
PCI Express Native Control
Select Enabled for enhanced PCI Express power saving in OS.
Configuration options: [Enabled] [Disabled]
PCIE ASPM Support
This option controls the ASPM support for all CPU downstream devices.
Configuration options: [Disabled] [L0s] [L1] [L0sL1]
PCH PCIE ASPM Support
This option controls the ASPM support for all PCH downstream devices.
Configuration options: [Disabled] [L1] [Auto]
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(Options vary
(Options vary
(Options vary depending on