Dell Dimension 4700 Owner's Manual - Page 37

Diagnostic Lights - bios

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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 ABCD Problem Description Suggested Resolution The computer is in a normal off Plug the computer into a working condition or a possible pre-BIOS failure electrical outlet and press the power has occurred. button. = yellow = green = off Advanced Troubleshooting 37

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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