14 Quick Reference Guide
Desktop Computer — Back View
5power 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
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
your online User’s Guide.
See "System Lights" on page 49 for a description of light codes that can help you
troubleshoot problems with your computer.
6diagnostic lights Use the lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information, see "Diagnostic Lights" on page 50.
7hard-drive activity light This light flickers when the hard drive is being accessed.
8headphone connector Use the headphone connector to attach headphones and most kinds of speakers.
9microphone connector Use the microphone connector to attach a microphone.
10 3.5-inch drive bay Can contain an optional floppy drive or optional Media Card Reader.
11 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive.
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