Dell Precision 690: Code Cause Error Messages Diagnostic Lights Diagnostic Light Codes Before POST Diagnostic Lights Power Problem Description Suggested Resolution Light

Code Cause Error Messages Diagnostic Lights Diagnostic Light Codes Before POST Diagnostic Lights Power Problem Description Suggested Resolution Light: Dell Precision 690

Table of contents

Code Cause

4-4-3 Math-coprocessor test failure

4-4-4 Cache test failure

Error Messages

NOTE: If the message is not listed, see the documentation for either the operating system or the program that was

running when the message appeared.

If an error occurs during start-up, a message may be displayed on the monitor identifying the problem.

See "Error Messages" in the

User’s Guide

for suggestions on resolving any problems.

Diagnostic Lights

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front.

The lights can be "off" or green. When the computer starts normally, the lights flash. If the computer

malfunctions, the pattern of the lights and also that of the power button help to identify the problem.

These lights also indicate sleep states.

Diagnostic Light Codes Before POST

Diagnostic Lights Power

Problem Description Suggested Resolution

Light

off No electrical power is

Connect the computer to an electrical outlet.

supplied to the computer.

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.

off The computer is in a normal

Press the power button to turn the computer

off condition; the computer is

on.

connected to an electrical

If the computer does not turn on, ensure that

outlet.

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.

Quick Reference Guide 35