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4 front-panel door Open the front-panel door to use the front-panel connectors. Removing and Installing Parts dell.com | support.dell.com Front View (Doors Open) 2 1 3 4 5 1 headphone connector Use the headphone connector to attach headphones and most kinds of speakers. 2 microphone connector Use the microphone connector to attach a personal computer microphone for voice or musical input into a sound or telephony program. 3 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards, or for bootable USB devices, which may not function properly if attached to the front connectors. 4 IEEE 1394 connector Attach high-speed serial multimedia devices, such as digital video cameras. 5 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights" on page 55. 72 Removing and Installing Parts Back View 3 2 7 8 4 5 1 6 1 processor fans (2) For optimal cooling, two processor fans are provided. Do not block the vents. 2 cover latch release To open the computer, lay the computer on its side with the cover latch release at the top and then push the latch to the left. See "Opening the Computer Cover" on page 76. 3 security cable slot Use a security cable with the slot to help secure your computer. 4 padlock ring Insert a padlock to lock the computer cover. 5 power connector Insert the power cable. 6 power supply fans For optimal cooling, two power supply fans are provided. Do not block the vents. 7 card slots (6) Access connectors for optional video, audio, modem, or other PCI cards (three slots) and PCI Express cards (two x16 slots and one x1 slot). NOTE: If a graphics card is installed in each of the PCI Express x16 card slots in the dual- graphics configuration, the PCI Express x1 card slot is not available for use. 8 back panel connectors Plug USB, audio, and other devices into the appropriate connector. Removing and Installing Parts dell.com | support.dell.com 1 234 5 67 13 12 11109 8 mouse connector Plug a standard mouse into the green mouse connector. Turn off the computer and any attached devices before you connect a mouse to the computer. If you have a USB mouse, plug it into a USB connector. surround connector Use the black surround connector to attach multichannel-capable speakers. 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. line-in connector / side-Use the blue and silver connector to attach a record/playback device such as a cassette surround player, CD player, or VCR, or to provide enhanced surround audio for computers with 7.1 speakers. On computers with a sound card, use the connector on the card. 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. • Yellow — A good network connection exists between a 1000-Mbps network and the computer. • Off — The computer is not detecting a physical connection to the network. 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. Connect the other end of the network cable to the network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely 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. 74 Removing and Installing Parts 7 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. 8 USB 2.0 connectors (6) Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. 9 microphone connector Use the pink connector to attach a personal 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 center/subwoofer Use the yellow connector to attach a speaker to a Low Frequency Effects (LFE) audio connector channel. 11 IEEE 1394 connector Attach high-speed serial multimedia devices, such as digital video cameras. 12 keyboard connector If you have a standard keyboard, plug it into the purple keyboard connector. If you have a USB keyboard, plug it into a USB connector. 13 serial connector Connect a s...
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