Dell OptiPlex 745 User Manual

Also see for OptiPlex 745: Administrator's guide Tech specs Quick reference guide Quick reference guide Quick reference guide

Contents

Inside Your Computerindicates 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 thecard.It is recommended that you use Category 5 wiring and connectors foryour network. If you must use Category 3 wiring, force the networkspeed to 10 Mbps to ensure reliable operation.4 network activitylightFlashes a yellow light when the computer is transmitting or receivingnetwork data. A high volume of network traffic may make this lightappear to be in a steady "on" state.5 line-outconnectorUse the green line-out connector to attach headphones and mostspeakers with integrated amplifiers.On computers with a sound card, use the connector on the card.6 line-in/microphoneconnectorUse the blue and pink line-in/microphone connector to attach arecord/playback device such as a cassette player, CD player, or VCR.; ora personal computer microphone for voice or musical input into a soundor telephony program.On computers with a sound card, use the connector on the card.7 USB 2.0connectors (6)Use the back USB connectors for devices that typically remainconnected, such as printers and keyboards.8 video connector Plug the cable from your VGA-compatible monitor into the blueconnector.NOTE: If you purchased an optional graphics card, this connector willbe covered by a cap. Connect your monitor to the connector on thegraphics card. Do not remove the cap.NOTE: If you are using a graphics card that supports dual monitors,use the y-cable that came with your computer.9 serial connector Connect a serial device, such as a handheld device, to the serial port.The default designations are COM1 for serial connector 1 and COM2 forserial connector 2.For more information, see System Setup Options.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.1 drive bays (media card reader or floppy drive, optical drive andhard drive)5 card slots