Dell Dimension 4500S - Manual (Page 53)

Headphone Connector
Use the headphone connector to attach headphones and most speakers so you can listen to all sounds coming from your computer including your CD player
and computer sounds such as beeps.
Your headphones do not work if the CD drive is operating in digital mode. To disable digital mode:
1. Click the Start button, click Control Panel, and then click Sounds, Speech, and Audio Devices.
2. Click Sounds and Audio Devices.
3. Click the Hardware tab.
4. Double-click the name of your CD drive.
5. Click the Properties tab.
6. Uncheck the Enable digital CD audio for this CD-ROM device box.
USB Connectors
Although any USB device can be attached to either the front- or back-panel USB connectors, Dell recommends using the front-panel USB connectors for devices
that you frequently connect and disconnect, such as USB digital cameras and gaming controllers. Use the back-panel USB connectors for devices that you
rarely connect and disconnect, such as USB printers, scanners, mouse, and keyboards.
Back View
HINT: If you attach a USB device that was not included in your original computer order, you may need to install a specific driver to make the device
work. Check the documentation that came with the device or contact the USB device manufacturer for more information.
1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a
USB connector.
2 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.
3 card slots (2) The slots for PCI cards.
4 power connector The connection for the power cable.
5 voltage selection switch (may not be
available on all computers) Your computer is equipped with either a fixed-voltage power supply, an auto-sensing voltage circuit, or a manual
voltage selection switch. See "
Safety Instructions " for more information.
6 line-in connector Use the blue line-in connector (available on computers with integrated sound) to attach a record/playback device
such as a cassette player, CD player, or VCR.
On computers with a sound card, the line-in connector is on the card.