Dell OptiPlex 740 Quick Reference Guide - Page 22

2 LAN indicator light This light indicates that a local area network (LAN) connection is established. 3 power button Press this button 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 more information. NOTICE: If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. 4 Dell badge 5 power light 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. 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 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 powersaving mode, see "Power Management" in your online User's Guide for instructions. See "System Lights" on page 54 for a description of light codes that can help you troubleshoot problems with your computer. 6 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights" on page 55. 22 Quick Reference Guide