BCM MX680RD - PCI Express Root Port 1 (X1 Key E); PCI Express Root Port 1 [Enabled]; ASPM 1 [Disabled]; Pcie Speed [Auto]

MX680RD User’s Manual
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2.5.2.9.1 PCI Express Root Port 1 (x1 Key E)
2.5.2.9.1.1 PCI Express Root Port 1 [Enabled]
Control the PCI Express Port
Configuration options: [Disabled], [Enabled]
2.5.2.9.1.2 ASPM 1 [Disabled]
Set the ASPM level: Force L0s- Force all links to L0s State; Auto- BIOS auto configure;
Disabled- Disables ASPM
Configuration options: [Disabled], [L1], [Auto]
2.5.2.9.1.3 PCIe Speed [Auto]
Select PCI Express Port speed
Configuration options: [Auto], [Gen1], [Gen2], [Gen3], [Gen4]