ASROCK EP2C612D16T-4L User Manual page 70

PCIE 4 Link Speed
his allows you to select PCIE 4 Link Speed. he default value is [Auto].
PCIE 6 Link Width
Use this item to select PCIe port Bifurcation for selected slot(s).
PCIE 6 - Port A Link Speed
Use this item to conigure the link speed between PCIe 6 and IOU, Port A.
PCIE 6 - Port C Link Speed
Use this item to conigure the link speed between PCIe 6 and IOU, Port C.
PCI-E ASPM Support
his option enables or disables the ASPM support for all downstream device.
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