support.dell.com Getting Help 11-1       This chapter describes the tools Dell provides to help you when you have a problemwith your computer. It also tells you when and how to call Dell for technical or cus-tomer assistance.  If you need assistance with a technical problem, perform the following steps:1. Complete the troubleshooting checks in Chapter 2, “Checking the Basics.”2. Run the Dell Diagnostics as described in Chapter 5, “Running the DellDiagnostics.”3. Make a copy of the Diagnostics Checklist (found later in this chapter), and fill itout.4. Use Dell’s extensive suite of online services available at Dell’s World Wide Website (http://www.dell.com) for help with installation and troubleshootingprocedures.For more information, refer to “World Wide Web” found later in this chapter.5. If the preceding steps have not resolved the problem, call Dell for technicalassistance.When prompted by Dell’s automated telephone system, enter your Express Ser-vice Code to route the call directly to the proper support personnel. If you do nothave an Express Service Code, open the Dell Accessories folder, double-click theExpress Service Code icon, and follow the directions.NOTE: Dell’s Express Service Code system may not be available in all countries.For instructions on using the technical support service, refer to “Technical Sup-port Service” and “Before You Call” found later in this chapter.

System Messages

Troubleshooting the Monitor

System Beep Codes

Warning Messages

Technical Assistance

Expansion Cards

Troubleshooting a Parallel Printer

Safety First—For You and Your Computer

Opening the Computer Doors

Removing and Replacing the Expansion-Card Cage

Removing the Expansion-Card Cage

Replacing the Expansion-Card Cage

Installing an Expansion Card

World Wide Web

AutoTech Service

TechConnect BBS

Figure 3-1. Hard-Disk Drive Indicators

Dell Contact Numbers

Backing Up Files

Features of the Dell Diagnostics

Preparing SCSI Hard-Disk Drives for Installation

Jumpers and Switches—A General Explanation

Figure A-1. System Board Jumpers

Dell PowerEdge 2450 Installation And Troubleshooting Manual

PowerEdge 2450

Introduction

Dell Servers that Support Wake‐on‐LAN

Supported Operating Systems

Using WOL after A/C Power Disconnect or with no Operating System (OS) Installed Out‐of‐Box, or D0uninitialized)

Enabling WOL under Microsoft Windows NT 4.0

Enabling WOL under Microsoft Windows 2000 Server or Microsoft Server 2003 Family Operating Systems

Enabling WOL under Red Hat Enterprise Linux® versions 4 and later and SUSE Linux Enterprise Server versions 9 and later