Dell OptiPlex 740 DCCY, Quick Reference Manual

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Quick Reference Guide
7 power light The power light illuminates and blinks or remains solid to
indicate different operating modes:
• 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 for instructions.
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 for more
information.
See "System Lights" on page 54 for a description of light codes
that can help you troubleshoot problems with your computer.
8
hard-drive
activity light This light flickers when the hard drive is being accessed.
9 headphone
connector Use the headphone connector to attach headphones and most
kinds of speakers.
10 microphone
connector Use the microphone connector to attach a microphone.