Dell GX280DT User Guide - Page 95

Back to Contents Page About Your Mini-Tower Computer Dell™ OptiPlex™ GX280 Systems User's Guide Front View Back View Inside Your Computer System Board Components Front View 1 CD/DVD drive 2 floppy drive 3 USB 2.0 connectors (2) Insert a CD or DVD (if applicable) in this drive. Insert floppy disk in this drive. Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras, or for bootable USB devices (see "System Setup" for more information on booting to a USB device). It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards. 4 LAN indicator light Indicates that a LAN (network) connection is established. 5 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." 6 power button Press to turn on the computer. 7 power light 8 hard drive activity light 9 headphone connector 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. The power light illuminates and blinks or remains solid to indicate different states: l No light - The computer is turned off (S4, S5, or mechanical OFF) l Steady green - The computer is in a normal operating state l Blinking green - The computer is in a power-saving state (S1 or S3) l Blinking or solid amber - See "Power Problems" To exit from a power-saving state, 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 states and exiting from a power-saving state, see "Power Management." See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer. This light will flicker when the hard drive is being accessed. Use the headphone connector to attach headphones and most kinds of speakers.