Dell OptiPlex 3020MOwner's ManualRegulatory Model: D08URegulatory Type: D08U001November 2020Rev. A03

Dell OptiPlex 3020M Owner's Manual

OptiPlex HUB

safety instructions

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

Front/back view

Desktop Computer (DT) View

Small Form Factor Computer (SFF) View

Ultra Small Form Factor Computer (USFF) View

marketing system configurations

Processor

advanced system manageability modes

Memory

Drives and Removable Storage

System Board Connectors

system board connector maximum allowable dimensions

External Ports/Connectors

Communications – Network Adapter (NIC)

Communications – Modem

audio and speakers

service and support

System Dimensions (Physical)

System Level Environmental and Operating Conditions

Power

Audio

Hard Drives

Optical Drives

BIOS Defaults

chassis EncLosurE anD vEntiLation rEquirEMEnts

Acoustic Noise Emission Information

operating mode

English

About This Guide

CAUTION: Safety Instructions

When Using Your Computer

When Working Inside Your Computer

Getting Started/Setup

Solving Problems

Using the Drivers and Utilities CD

Dell Diagnostics

Running the Dell IDE Hard Drive Diagnostics

Limited Warranties and Return Policy

Total Satisfaction" Return Policy (U.S. Only)

Limited Warranty Terms for Canada

Total Satisfaction" Return Policy (Canada Only)

Português

sobre este guia

ao utilizar o computador

ao trabalhar dentro do computador

primeiros passos/configuração

solução de problemas

utilização do cd de drivers e utilitários

programa dell diagnostics

informações sobre regulamentação

garantias limitadas e política de devolução

Espanol

acerca de esta guía

al usar el equipo

al trabajar en el interior de su equipo

para comenzar/configuración

solución de problemas

utilización del cd drivers and utilities

diagnósticos dell

información reglamentaria

garantías limitadas y política de devoluciones

Working on Your Computer

Turning Off Your Computer

After Working Inside Your Computer

Installing the Accessories

Installing the Dell OptiPlex Micro Dual VESA Mount

Installing the Dell OptiPlex Micro VESA Mount

Installing the Dell OptiPlex Micro Vertical Stand

Installing the Dell OptiPlex Micro Console with DVD-RW

Installing the Dell OptiPlex Micro All-in-One Mount Behind the Monitor

Removing and Installing Components

Installing the Cover

Removing the Processor Fan Module

Installing the Processor Fan Module

Removing the Hard Drive

Installing the Hard Drive

Installing the HDMI or DisplayPort Connector Board

Installing the PS2 and Serial Connector Board

Removing the Processor

Installing the WLAN Card

Installing the M.2 SSD or DDPE Card

Installing the Coin-Cell Battery

Removing the System Board

Installing the System Board

System Setup

System Setup Options

Updating the BIOS

System and Setup Password

Deleting or Changing an Existing System and/or Setup Password

Specifications

Contacting Dell

List of Compatible Monitor Models

Installing the Heatsink

Installing the Memory

Assigning a System Password and Setup Password

Disabling a System Password

working on your computer

turning off your computer

removing and installing components

installing the cover

installing the hard drive assembly

installing the vga board

installing the system fan

removing the memory module

installing the heat sink

installing the processor

installing the speaker

removing the system board

installing the system board

system board layout

troubleshooting your computer

diagnostic error messages

system error messages

system setup

system setup overview

updating the bios

system and setup password

Deleting or changing an existing system and/or setup password

specifications

contacting dell

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