Dell OptiPlex GX260 User Guide - Page 32
Inside Your Computer, Small Form-Factor Computer - sound card
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4 link integrity light your hard drive. 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. Yellow - A good connection exists between a 1,000-Mbps (1-Gbps) network and the computer. Off - The computer is not detecting a physical connection to the network. 5 network adapter Attach the UTP cable to an RJ45 jack wall plate or to an RJ45 port on a UTP concentrator or hub and press the other end of the UTP cable into the network adapter connector until the cable snaps securely into place. 6 network activity light Dell recommends the use of Category 5 wiring and connectors for our customers' networks. The yellow light flashes 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. 7 line-in Use the green line-out connector (available on computers with integrated sound) to attach headphones connector and most speakers with integrated amplifiers. On computers with a sound card, the line-out connector is on the card. 8 line-out Use the blue line-in connector (available on computers with integrated sound) to attach a record/playback connector device such as a cassette player, CD player, or VCR. On computers with a sound card, the line-in connector is on the card. 9 microphone Use the pink microphone connector (available on computers with integrated sound) to attach a personal connector computer microphone for voice or musical input into a sound or telephony program. On computers with a sound card, the microphone connector is on the card. 10 USB Connect USB devices such as a mouse, keyboard, printer, joystick, and computer speakers into any of the connectors USB connectors. 11 diagnostic Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more lights information, see "Diagnostic Lights." 12 video Plug the cable from your VGA-compatible monitor into the blue connector. connector 13 serial Connect a serial device, such as a handheld device, to the serial connector. If you have a second serial connector connector card installed, you can connect a second device to that connector. For more information, see "System Setup Options." Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the steps in "CAUTION: Safety Instructions." CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Be careful when opening the computer cover to ensure that you do not accidently disconnect cables from the system board. Small Form-Factor Computer