Инструкция по эксплуатации Dell OptiPlex GX520 — страница 9

Quick Reference Guide

CD/DVD drive

Insert a CD or DVD (if applicable) into this drive.

floppy drive

Insert a floppy disk into this drive.

USB 2.0 connectors (2)

Connect USB devices such as a mouse keyboard memory key printer joystick and computer speakers into either of the USB connectors.

It is recommended that you use the USB connectors on the back panel for devices that typically remain connected such as printers and keyboards.

LAN indicator light

This light indicates that a LAN (network) connection is established.

diagnostic lights

Use these lights to help you troubleshoot a computer problem based on the diagnostic code For more information see "Diagnostic Lights" on page 32.

power button

Press this button to turn on the computer.

NOTICE:

To avoid losing data do not turn off the computer by pressing the power button for 6 seconds or longer Instead perform an operating system shutdown.

NOTICE:

If your operating system has ACPI enabled when you press the power button the computer will perform an operating system shutdown.

power light

The power light illuminates and blinks or remains solid to indicate different operating states:

• No light The computer is turned off.

- Steady green The computer is in a normal operating state.

- Blinking green The computer is in a power-saving mode.

- Blinking or solid amber See "Power Problems" in your online

User’s Guide.

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 For more information about sleep modes and exiting from a power-saving mode see "Power Management" in your online

User’s Guide.

See "System Lights" on page 31 for a description of power light patterns that can help you troubleshoot problems with your computer.

hard-drive activity light

This light flickers when the hard drive is in use.

headphone connector

Use the headphone connector to attach headphones and most kinds of speakers.

microphone connector

Use the microphone connector to attach a microphone.