Avalue Technology EMX-BYT2 User Manual page 111

Item
PCI Express Port 0/1/2/3
Speed
Option
Enabled[Default],
Disabled
Auto[Default]
Gen 2
Gen 1
Description
Enable or Disable the PCI Express Port
0/1/2/3 in the Chipset.
Configure PCIe Port Speed.
EMX-BYT2 User's Manual 111
User's Manual