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Setup and Quick Reference Guide 31
System Light Codes
Power Light Hard Drive Light Cause Corrective Action
Solid green N/A Power is on, and the computer is
operating normally.
No corrective action is required.
Blinking green Blank The computer is in the suspended
state (Windows 2000 and
Windows XP).
Use one of the appropriate methods
to "wake up" the computer. See
"Power Management" in the
User’s Guide.
Blinks green several
times and then
turns off
N/A A configuration error exists. Check the diagnostic lights to see if
the specific problem is identified.
Solid yellow N/A 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 the diagnostic lights to see if
the specific problem is identified.
Also, see "System Board Problems" in
the User’s Guide.
If the computer does not boot,
contact Dell for technical assistance.
Blinking yellow Blank A power supply or system board
failure exists.
Check the diagnostic lights to see if
the specific problem is identified.
Also, see "Power Problems" and
"System Board Problems" in the
User’s Guide.
Blinking yellow Solid green A system board failure exists. Check the diagnostic lights to see if
the specific problem is identified.
Also, see "System Board Problems" in
the User’s Guide.
Solid green and a
beep code during
POST
N/A A problem was detected while the
BIOS was executing.
See "Beep Codes" on page 37 for
instructions on diagnosing the beep
code. Also, check the diagnostic lights
to see if the specific problem is
identified.
Solid green power
light and no beep
code and no video
during POST
N/A The monitor or the graphics card may
be faulty or incorrectly installed.
Check the diagnostic lights to see if
the specific problem is identified.
Also, see "Video Problems" in the
User’s Guide.
Solid green power
light and no beep
code but the
computer locks up
during POST
N/A An integrated system board device
may be faulty.
Check the diagnostic lights to see if
the specific problem is identified. If
the problem is not identified, contact
Dell for technical assistance.