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Inside your computer – Dell OptiPlex 740 User Manual

Page 27

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Inside Your Computer

 

 

adapter
connector

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.

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.

4 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.

5 line-out

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.

6 line-in

connector

Use the 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.

7 USB 2.0

connectors
(5)

Use the back USB connectors for devices that typically remain connected,
such as printers and keyboards.

8 video

connector

Plug the cable from your VGA-compatible monitor into the blue connector.

 

NOTE:

If you purchased an optional graphics card, this connector will be

covered by a cap. Do not remove the cap. Connect your monitor to the
connector on the graphics card.

 

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 for serial
connector 2.

 

NOTE:

There is only a serial connector 2 if the optional PS2/serial adapter

is used.

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.