Quick Reference Guide 17
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 "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 a description of light codes that can help you troubleshoot problems with your
computer see "System Lights" on page 33.
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 34.
7link integrity light
• Green — A good connection exists between a 10-Mbps network and the
computer.
• Orange — A good connection exists between a 100-Mbps network and the
computer.
• Off — The computer is not detecting a physical connection to the network.
8headphone connector Use the headphone connector to attach headphones.
9floppy drive Insert a floppy disk into this drive.
10 CD/DVD drive Insert a CD or DVD (if supported) into this drive.
11 location of Service Tag Use the Service Tag to identify your computer when you access the Dell Support
website or call technical support.
1card slots Access connectors for any installed PCI and PCI Express Cards.
2back-panel connectors Plug serial, USB, and other devices into the appropriate connector.
See "Desktop Computer — Back-Panel Connectors" on page 18.
3power connector Insert the power cable into this connector.
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