Apple Power Mac G5 (Late 2004) - Manual (Page 95)

Appendix C Connecting to the Internet 95
To set up Network preferences for the built-in Ethernet port:
1 Choose Apple (K) > System Preferences from the menu bar.
2 Click Network.
3 Choose Network Port Configurations from the Show pop-up menu.
4 Select Built-in Ethernet.
5 Drag Built-in Ethernet to the top of the Port Configurations list to make it the preferred,
or primary, network interface.
Next, follow the instructions to configure your network manually, using DHCP, or using
PPPoE, as instructed by your ISP or network administrator.