TYAN TS75-B7122 Service Engineer's Manual page 177

5.3.15.2.1 PCI Express Root Port 1 ~ 20
PCI Express Root Port 1~20
Control the PCI Express Root Port.
Disabled / Enabled
NOTE: When PCI Express Root Port 1 has set to [Enabled], the following items
Will be available to set up.
L1 Substates
PCI Express L1 Substates settings.
Disable / L1.1 / L1.2 / L1.1 & L1.2
PCIe Speed
Configure PCIe Speed.
Auto / Gen1 / Gen2 / Gen3
Max Payload Size
PCIE Max Payload Size Selection.
MPL128B / MPL256B
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