System Lights - Dell OptiPlex 745c Quick Reference Manual

4 When the tests are completed, if you are running the Dell Diagnostics from the Drivers and Utilities
CD (optional), remove the CD.
5 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 light may indicate a computer problem.
Power Light Problem Description
Solid green Power is on, and the computer is
operating normally.
Blinking green The computer is in a power-saving
mode.
Blinks green several A configuration error exists.
times and then
turns off
Solid yellow A device on the system board may be
faulty or incorrectly installed or the
voltage selection switch on the power
supply may be set incorrectly.
Blinking yellow A power supply or system board
failure has occurred.
Solid green and a A problem was detected while the
beep code during BIOS was executing.
POST
Solid green power The monitor or the graphics card may
light, no beep code be faulty or incorrectly installed.
and no video during
POST
Solid green power An integrated system board device
light and no beep may be faulty.
code, but the
computer locks up
during POST
24
Quick Reference Guide
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 Diagnostic Lights to see if the specific problem
is identified (see "Diagnostic Lights" on page 25).
Check Diagnostic Lights to see if the specific problem
is identified (see "Diagnostic Lights" on page 25).
See "Power Problems" in your online User's Guide.
If the computer does not boot, contact Dell for
technical assistance. For information on contacting
Dell, see your online User's Guide.
Check Diagnostic Lights to see if the specific problem
is identified (see "Diagnostic Lights" on page 25).
See "Power Problems" in your online User's Guide.
If the computer does not boot, contact Dell for
technical assistance. For information on contacting
Dell, see your online User's Guide.
For instructions on diagnosing the beep code see
"Beep Codes" on page 27. Also, check Diagnostic
Lights to see if the specific problem is identified.
Check Diagnostic Lights to see if the specific problem
is identified.
Check Diagnostic Lights to see if the specific problem
is identified. If the problem is not identified, contact
Dell for technical assistance. For information on
contacting Dell, see your online User's Guide.