ADLINK AmITX-IB-I - Manual (Page 62)

50 BIOS Setup
NB PCIe Configuration
PEG0 - Gen X
Configure PEG0 B0:D1:F0 Gen1-Gen3
PEG0 ASPM
Control ASPM support for the PEG: Device1 Function 0.This
has no effect if PEG is not the currently active device.
Enable PEG
Enable or disable the PEG.
Detect Non-Compliance Device
Detect non-compliant PCI Express device in PEG.