Your computer is equipped with a manual voltage-selection switch. On computers with a sound card, use the connector on the card. Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Use the headphone connector to attach headphones and most kinds of speakers. For more information about sleep modes and exiting from a power-saving mode, see Power Management. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge.
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OptiPlex 745 – Windows 7 and 8.1 32 Bit
On computers with a sound card, use the connector on the card. For more information, see Diagnostic Lights.
If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. If you are using a graphics card that pc dual monitors, use the y-cable that came with your computer.
The integrated parallel connector is automatically disabled if the computer detects an installed card containing a 75 connector configured to the same address. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation. If you purchased an optional graphics card, this connector will be covered by a cap.
Plug the cable from your VGA-compatible monitor into the blue connector. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge. Do not remove the cap. See System Lights for a description of light codes that can help you troubleshoot problems with your computer.
Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. Connect your monitor to the connector on the graphics card. Indicates that a LAN local area network connection is established. Can be rotated to match the orientation of your computer. Connect a parallel device, such as a printer, to the parallel connector.
Can contain an optional floppy drive or optional media card reader. The power light illuminates and blinks or remains solid to indicate different operating states: To help avoid damaging a computer with a manual voltage selection switch, set the switch for the voltage that most closely matches the AC power available in your location. It is recommended that you use Category 5 wiring and connectors for your network.
Connect a serial device, such as a handheld device, to the serial port. To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. Connect the other end of the network cable to the network adapter connector on the back panel of your computer.
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On computers with a sound card, the microphone connector is on the card. Do not plug a telephone cable into the network connector. In Japan, the voltage selection switch must be set to the V position.
A click optplex that the network cable has been securely attached. For more information, see System Setup Options. Flashes a yellow light when the computer is transmitting or receiving network data.
Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board. Use the optipldx connector to attach headphones and most kinds of speakers. It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
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Also, ensure seriak your monitor and attached devices are electrically rated to operate with the AC power available in your location. To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
To avoid losing data, do not turn off the computer by pressing the power button.