Dell OptiPlex 755, Quick Reference Manual

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Quick Reference Guide
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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 Problem Description Suggested Resolution
Solid green Power is on, and the computer is
operating normally. On the
desktop computer, a solid green
light indicates a network
connection. No corrective action is required.
Blinking green The computer is in a power-
saving mode. Press the power button, move
the mouse, or press a key on the
keyboard to wake the computer.
Blinks green
several times and
then turns off A configuration error exists. Check the diagnostic lights to
see if the specific problem is
identified (see "Diagnostic
Lights" on page 66).
Solid yellow The Dell Diagnostics is running
a test, or a device on the system
board may be faulty or
incorrectly installed. 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 ).
Blinking yellow A power supply or system board
failure has occurred. See "Power Problems" in the
User’s Guide .