System Lights - Dell OptiPlex 755 Quick Reference Manual

4 When the tests are completed, if you are running the Dell Diagnostics
from the Drivers and Utilities CD, remove the CD.
5 When the tests are complete, close Close the test screen to return to the
Main Menu screen. To exit the Dell Diagnostics and restart the computer,
close the Main Menu screen.

System Lights

Your power button light and hard drive light may indicate a computer
problem.
Power Light
Solid green
Blinking green
Blinks green
several times and
then turns off
Solid yellow
Blinking yellow
Problem Description
Power is on, and the computer is
operating normally. On the
desktop computer, a solid green
light indicates a network
connection.
The computer is in a power-
saving mode.
A configuration error exists.
The Dell Diagnostics is running
a test, or a device on the system
board may be faulty or
incorrectly installed.
A power supply or system board
failure has occurred.
Suggested Resolution
No corrective action is required.
Press the power button, move
the mouse, or press a key on the
keyboard to wake the computer.
Check the diagnostic lights to
see if the specific problem is
identified (see "Diagnostic
Lights" on page 66).
If the Dell Diagnostics is
running, allow the testing to
complete.
If the computer does not boot,
contact Dell for technical
assistance (see "Contacting
Dell" in the User's Guide).
See "Power Problems" in the
User's Guide.
Quick Reference Guide
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