Dell OptiPlex 740 Quick Reference Manual page 20

2 power button
3 Dell badge
4 hard drive activity light
5 diagnostic lights
6 LAN indicator light
7 power light
8 headphone connector
9 microphone connector
10 floppy drive bay
(optional)
11 optical drive (optional)
20
Quick Reference Guide
Press to turn on the computer.
NOTICE:
To avoid losing data, do not turn off the computer by pressing the
power button. Instead, perform an operating system shutdown. See "Turning
Off Your Computer" in your online User's Guide for instructions for more
information.
NOTICE:
If your operating system has ACPI enabled, when you press the
power button the computer will perform an operating system shutdown.
This badge can be rotated to match the orientation of your computer. To rotate,
place fingers around the outside of the badge, press firmly, and turn the badge.
You can also rotate the badge using the slot provided near the bottom of the
badge.
This light flickers when the hard drive is being accessed.
Use the lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information, see "Diagnostic Lights" on page 42.
This light indicates that a LAN (local area network) connection is established.
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 40 for a description of light codes that can help you
troubleshoot problems with your computer.
Use the headphone connector to attach headphones and most kinds of speakers.
Use the microphone connector to attach a microphone.
Can contain an optional slimline floppy drive or optional slimline media card
reader.
Insert slimline optical drive (if supported) into this bay.