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9 diagnostic lights (4) Use the sequence of the diagnostic lights to help you troubleshoot a problem with your computer (see Diagnostic Lights). 10 headphone connector Use the headphone connector to attach headphones and most kinds of speakers. 11 microphone connector Use the microphone connector to attach a personal computer microphone for voice or musical input into a sound or telephony program. 12 Service Tag Use the Service Tag to identify your computer when you access the Dell Support website or contact support. 1 power connector Insert the power cable. 2 back I/O connectors Plug USB, network, S/PDIF, and audio devices into the appropriate connectors (see Back Panel Connectors). 3 card slots (6) Access connectors for any installed PCI or PCI Express cards. 1 link integrity light l Green — A good connection exists between a 10-Mbps network and the computer. l Orange — A good connection exists between a 100-Mbps network 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 to the network. 2 network adapter connector NOTICE: Do not plug a telephone cable into the network connector. Use the network adapter connector to attach your computer to a network or broadband device. Connect one end of a network cable to either a network jack or your network or broadband device, and then connect the other end of the network cable to the network Back to Contents Page adapter connector on your computer. A click indicates that the network cable has been securely attached. On computers with an additional network connector card, use the connectors on the card and on the back of the computer when setting up multiple network connections (such as a separate intraand extranet). NOTE: It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation. 3 network activity light Flashes a yellow light when the computer is transmitting or receiving network data. A high volume of network traffic may make this light appear to be in a steady "on" state. 4 USB 2.0 connectors (2) (rear dual) Use the back, rear-dual USB connectors for devices that typically remain connected, such as printers and keyboards. NOTE: It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks, cameras, or bootable USB devices. 5 USB 2.0 connectors (4) (rear quad) Use the back, rear-quad USB connectors for devices that typically remain connected, such as printers and keyboards. NOTE: It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks, cameras, or bootable USB devices. 6 surround sound connector Use the (black) surround sound connector to attach multichannelcapable speakers. On computers with a sound card, use the connector on the card. 7 line-in connector Use the (blue) line-in connector to attach a record/playback device such as a cassette player, CD player, or VCR. On computers with a sound card, use the connector on the card. 8 line-out/headphone connector Use the (green) line-out connector to attach headphones and most speakers with integrated amplifiers. On computers with a sound card, use the connector on the card. 9 microphone connector Use the (pink) microphone connector to attach a personal computer microphone for voice or musical input into a sound or telephony program. On computers with a sound card, use the connector on the card. 10 center/subwoofer LFE connector Use the (orange) center/subwoofer connector to attach a center speaker or a single subwoofer. On computers with a sound card, use the connector on the card. NOTE: The LFE (Low Frequency Effects) Audio channel, found in digital surround sound audio schemes, carries only low frequency information of 80 Hz and below. The LFE channel drives a subwoofer to provide extremely low bass extension. Systems not using subwoofers can shunt the LFE information to the main speakers in the surround sound setup. 11 side surround sound connector Use the (gray) side surround sound connector to attach multichannel-capable speakers. The side-surround output provides enhanced surround audio for computers with 7.1 speakers. On computers with a sound card, use the connector on the card. 12 S/PDIF connector Use the S/PDIF connector to transmit digital audio without going through an analog audio conversion process. On computers with a sound card, use the connector on the card. Back to Contents Page Advanced Troubleshooting Dell™ XPS™ 410 Service Manual Power Lights Diagnostic Lights Beep Codes Dell Diagnostics Drivers Resolving Software and Hardware Incompatibilities Power Lights The power button light located on the front of the computer illuminates and blinks or remains solid to indicate different states: l If the power light is green and the computer is not respondi...