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safety instructions

Introduction

Operating System

Responding to Error Messages

Audio Connectors for the OptiPlex NX

Maintaining the System

Cleaning the Computer, Monitor, and Keyboard Exteriors

Dust and Particles

Magnetism

Line Conditioners

Regulatory Notices

IC Notice (Canada Only)

EN 55022 Compliance (Czech Republic Only)

Korean Regulatory Notice

NOM 024 Information (Mexico Only)

Información para NOM 024 (únicamente para México)

Warranties and Return Policy

General

Dell OptiPlex NX User Manual

typographical conventions

Checking the Basics

Checking Connections and Switches

Look and Listen

The System Setup Program

Messages and Codes

Table 2-2. System Beep Codes

Warning Messages

Finding Software Solutions

Using Software

Program Conflicts

Running the Dell Diagnostics

Figure 4-1. Diagnostics Menu

Figure 4-2. Dell Diagnostics Screen

Main Menu Categories

Run Under Subtest

Pause for User Response

Output Device for Error Messages

Tests in the Dell Diagnostics

Error Messages

Why Run a System Set Test?

Video Test Group

Keyboard Test Group

Subtests

Why Run a Hard-Disk Drives Test?

Why Run an IDE CD ROM Drives Test?

Parallel Ports Test Group

SCSI Devices Test Group

Network Interface Test Group

Why Run an Audio Test?

Checking Your Equipment

Troubleshooting the Keyboard

Troubleshooting the Basic I/O Functions

Troubleshooting a Parallel Printer

Checking Inside Your Computer

Troubleshooting a Wet Computer

Troubleshooting the Battery

Troubleshooting Expansion Cards

Troubleshooting System Memory

Troubleshooting the Video Subsystem

Troubleshooting the System Board

Troubleshooting the Diskette/Tape Drive Subsystem

Troubleshooting a Non-SCSI Internal Tape Drive

Troubleshooting a SCSI Tape Drive

Troubleshooting Hard-Disk Drives

in a System Without a SCSI Backplane Board

in a System With a SCSI Backplane Board

Getting Help

Help Tools

Frequently Asked Questions Cards

TechFax Service

Problems With Your Order

Figure 7-1. Diagnostics Checklist

Dell Contact Numbers

Table 7-2. International Dialing Codes

Table 7-3. Dell Contact Numbers

Diagnostic Video Tests

Character Attributes Subtest (80 x 25)

Character Set Subtest (80 x 25)

Video Scan Alignment Subtest

Figure A-4. Video Scan Alignment Subtest (Screen 2)

Character Attributes Subtest (40 x 25)

Character Set Subtest (40 x 25)

Text Mode Color Test

Color Attributes Subtest (40 x 25)

Graphics Mode Test

Figure A-8. 640 x 200 Black/White Graphics Mode Screen

x 480 Monochrome Graphics Mode Screen

x 200 16-Color Graphics Mode Screen

Figure A-10. 640 x 480 2-Color Graphics Mode Screen

x 480 16-Color Graphics Mode Screen

Solid Colors Test

abbreviations and acronyms

OptiPlex N

System Overview

System Features

Figure 1-2. Front-Panel Features

Expansion-Card Slot

Optional Built-In NIC

Computer Service

Pin Assignments for the DC Power Connectors

DC Power Distribution

Figure 1-10. DC Power Distribution

System Board

Main Memory

Table 1-2. System-Board Jumper Descriptions

Interrupt Assignments

DMA Channel Assignments

Technical Specifications

Basic Troubleshooting

External Visual Inspection

Observing the Boot Routine

Server-Based Diagnostics

Hard-Disk–Based Diagnostics

Internal Visual Inspection

Diskette-Based Diagnostics

Running the Diskette-Based Diagnostics

Beep Codes and Error Messages

Table 3-1. POST Beep Codes

System Error Messages

Table 3-2. System Error Messages

Removing and Replacing Parts

Precautionary Measures

Figure 4-1. Optional Stand Removal

Computer Cover

Control Panel

Hard-Disk Drive

System Power Supply

System Board Components

Expansion-Card Cage

Expansion Card

Riser Board

DIMMs

Microprocessor/Heat Sink Assembly

Figure 4-14. Microprocessor Securing-Clip Removal

System Battery

Figure 4-16. System Board Removal

System Setup Program

System Setup Screens

Figure A-2. Sample Device List Screen

Stand for Vertical Orientation

OptiPlex NX