TYAN S8030 Manual page 104

3.5.4 NBIO Common Options
IOMMU
Enable/Disable IOMMU.
Enabled / Disabled / Auto
ACS Enable
AER must be enabled for ACS enable to work.
Enabled / Disabled / Auto
PCIe ARI Support
Enables Alternative Routing-ID Interpretation.
Enabled / Disabled / Auto
Preferred IO
Preferred IO Select Type.
Manual: Bus Number manually
Auto: Default
Manual / Auto
NOTE: The following item is available when Preferred IO is set to [Manual].
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