Back I/O Connectors1 power connector Insert the power cable. The appearance of this connector may differfrom what is pictured.2 back panel LEDs(2)Multi-colored lights provide illumination for the I/O panel on the back ofthe computer.NOTE: The color of the back panel LEDs can be adjusted in systemsetup (see System Setup).3 back I/OconnectorsPlug serial, USB, and other devices into the appropriate connectors(see Back I/O Connectors).4 card slots Access connectors for any installed PCI or PCI Express cards.NOTE: Some connector slots support full-length cards.1 link integrity light l Green — A good connection exists between a 10-Mbpsnetwork and the computer.l Orange — A good connection exists between a 100-Mbpsnetwork and the computer.l Yellow — A good connection exists between a 1000-Mbps (1-Gbps) network and the computer.l Off — The computer is not detecting a physical connection tothe network.2 network adapterconnectorNOTICE: Do not plug a telephone cable into the network adapterconnector.Use the network adapter connector to attach your computer to anetwork or broadband device. Connect one end of a network cableto either a network jack or your network or broadband device, andthen connect the other end of the network cable to the networkadapter connector on your computer. A click indicates that thenetwork cable has been securely attached.On computers with an additional network connector card, use theconnectors on the card and on the back of the computer whensetting up multiple network connections (such as a separate intra-
