if you change motherboard and restart ubuntu system,
you may find all networks can't work with correct interfaces.
You can rename the interface to map the correct networks.
1.modify the /etc/udev/rules/70-persistent-net.rules
change eth? to correct number with mac address
2.remove all setting on /etc/network/interfaces except lo setting
4.add network setting on /etc/network/interfaces
iface eth1 inet static