
Advanced Troubleshooting
37
Advanced Troubleshooting
Diagnostic Lights
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions
located in the
Product Information Guide
.
To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on
the back panel (see page 51). The lights can be yellow or green. When the computer starts
normally, the lights flash. After the computer starts, all four lights display solid green. If the
computer malfunctions, the color and sequence of the lights identify the problem.
Light Pattern
Problem Description
Suggested Resolution
The computer is in a normal off
condition or a possible pre-BIOS failure
has occurred.
Plug the computer into a working
electrical outlet and press the power
button.
A B C D
= yellow
= green
= off
Summary of Contents for Dimension 4700 Series
Page 8: ...8 Contents ...
Page 20: ...20 Setting Up and Using Your Computer w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 36: ...36 Solving Problems w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 90: ...90 Removing and Installing Parts w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 122: ...122 Appendix w w w d e l l c o m s u p p o r t d e l l c o m ...