Advantech AIR-500D User Manual page 59

– PCI Express Root Port
Configure PCI Express Root Port Settings.
– ASPM
PCI Express Active State Power Management settings.
– L1 Substates
PCI Express L1 Substates settings.
– PCIe Speed
Configure PCIe Speed. Auto is equal to Gen2 or Gen3 depending on DTR
soft strap.
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