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Diagnostic Light Codes During POST
and then press the power button.
If the problem is still not resolved, contact Dell for technical assistance.
The computer is in a normal off condition;
the computer is connected to its electrical
outlet.
Press the power button to turn the computer on.
If the computer does not turn on, ensure that the front-panel power light is on. If the
power light is off, ensure that the computer is connected to a working electrical outlet and
then press the power button.
If the problem is still not resolved, contact Dell for technical assistance.
The computer is in a reduced power or
"sleep" state.
Use one of the appropriate methods to "wake up" the computer. See "Advanced Features."
If the problem is not resolved and you are trying to wake the computer with a USB mouse
or keyboard, subsitute the mouse or keyboard with a working PS/2 mouse or keyboard and
try to wake the computer.
The BIOS is not executing.
Ensure that the microprocessor is seated correctly and restart the computer.
If the problem is still not resolved, contact Dell for technical assistance.
A possible power supply or power cable
failure has occurred.
Perform the procedure in "Power Problems."
If the problem is still not resolved, contact Dell for technical assistance.
A possible system board failure has
occured.
Contact Dell for technical assistance.
A microprocessor and/or VRM mismatch
exists.
Perform the procedure in "Microprocessor Problems."
A possible VRM 0 failure has occurred.
Contact Dell for technical assistance.
A possible VRM 1 failure has occurred.
Perform the procedure in "Microprocessor Problems."
A possible VRM 0 and VRM 1 failure has
occurred.
Contact Dell for technical assistance.
Light Pattern
Problem Description
Suggested Resolution
A possible BIOS failure has occurred; the
computer is in the recovery mode.
Run the BIOS Recovery Utility, wait for recovery completion, and then restart the computer.
A possible microprocessor failure has
Reinstall the microprocessor and restart the computer.