64 Removing and Installing Parts1 link integrity light • Green — A good connection exists between a 10-Mbps network and the computer.• Orange — A good connection exists between a 100-Mbps network and the computer.• Off — The computer is not detecting a physical connection to the network.2 network adapterconnectorTo attach your computer to a network or broadband device, connect one end of anetwork cable to either a network jack or your network or broadband device.Connect the other end of the network cable to the network adapter connector onthe back panel of your computer. A click indicates that the network cable has beensecurely attached.NOTE: Do not plug a telephone cable into the network connector.On computers with a network connector card, use the connector on the card.It is recommended that you use Category 5 wiring and connectors for yournetwork. If you must use Category 3 wiring, force the network speed to 10 Mbps toensure reliable operation.3 network activity light Flashes a yellow light when the computer is transmitting or receiving networkdata. A high volume of network traffic may make this light appear to be in a steady"on" state.4 surround connector Use the black surround connector to attach multichannel-capable speakers.5 line-in connector Use the blue line-in connector to attach a record/playback device such as a cassetteplayer, CD player, or VCR.On computers with a sound card, use the connector on the card.6 line-out connector Use the green line-out connector (available on computers with integrated sound)to attach headphones and most speakers with integrated amplifiers.On computers with a sound card, use the connector on the card.7 micro-phone/sidesurround connectorUse the pink and silver connector to attach a personal computer microphone forvoice or musical input into a sound or telephony program.On computers with a sound card, the microphone connector is on the card.8 center/subwooferconnectorUse the yellow connector to attach a speaker to a Low Frequency Effects (LFE)audio channel.1 2873 456910WD846bk2.book Page 64 Thursday, September 14, 2006 2:40 PM