Dell OptiPlex 755 - Manual (Page 38)

38
Quick Reference Guide
2 power button 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" on page 13 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.
3 Dell 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.
4 LAN indicator
light Indicates that a LAN (local area network) connection is
established.
5 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 66.
6 hard drive
activity light This light flickers when the hard drive is being accessed.