Dell Precision Workstation 490 Guide De Référence Rapide page 39

Diagnostic Lights Power
Light
blinking
green
blinking
green
amber
(blinking)
blinking
amber
(blinking)
amber
(blinking)
amber
(blinking)
Problem Description
The computer is in a reduced
power or "sleep" state.
The computer is in a reduced
power or "sleep" state.
The BIOS is not executing.
A possible power supply or
power cable failure has
occurred.
A possible system board
failure has occurred.
A processor mismatch exists.
Suggested Resolution
Use one of the appropriate methods to "wake
up" the computer. See "Advanced Features"
in your User's Guide.
If the problem is not resolved and you are trying
to wake the computer with a USB mouse or
keyboard, substitute the mouse or keyboard
with a working PS/2 mouse or keyboard and
then try to wake the computer.
Use one of the appropriate methods to "wake
up" the computer. See "Advanced Features"
in your User's Guide.
If the problem is not resolved and you are trying
to wake the computer with a USB mouse or
keyboard, substitute the mouse or keyboard
with a working PS/2 mouse or keyboard and
then try to wake the computer.
Ensure that the processor is seated correctly and
restart the computer. See "Processor" in your
User's Guide.
If the problem is still not resolved, contact Dell
for technical assistance.
Perform the procedure in "Power Problems"
in your User's Guide.
If the problem is still not resolved, contact Dell
for technical assistance.
Contact Dell for technical assistance.
Perform the procedure in "Processor Problems"
in your User's Guide.
Quick Reference Guide
39