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Quick Reference Guide 31
System Lights
Your power light may indicate a computer problem.
Power Light Problem Description Suggested Resolution
Solid green Power is on, and the computer is
operating normally.
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 Diagnostic Lights to see if the specific
problem is identified (see "Diagnostic Lights" on
page 32).
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.
Check Diagnostic Lights to see if the specific
problem is identified (see "Diagnostic Lights" on
page 32).
If the computer does not boot, contact Dell for
technical assistance.
For information on
contacting Dell, see your online
User’s Guide
.
Blinking yellow A power supply or system board
failure has occurred.
Check Diagnostic Lights to see if the specific
problem is identified (see "Diagnostic Lights" on
page 32; see "Power Problems" in your online
User’s Guide).
Solid green and a beep
code during POST
A problem was detected while the
BIOS was executing.
For instructions on diagnosing the beep code see
"Beep Codes" on page 35. Also, check Diagnostic
Lights to see if the specific problem is identified.
Solid green power light,
no beep code and no
video during POST
The monitor or the graphics card may
be faulty or incorrectly installed.
Check Diagnostic Lights to see if the specific
problem is identified.
Solid green power light
and no beep code, but
the computer locks up
during POST
An integrated system board device
may be faulty.
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
.