Dell Precision 620 User Manual download pdf (Page 86)

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InternalComponents:DellPrecision™WorkStation620SystemsUser'sGuide

Overview

This section provides troubleshooting procedures for components inside your computer. Before you start any of the procedures in this section, do

the following:

l Perform the procedures described in "Checking Connections and Switches" and "System Setup."

l Read the safety instructions in "Safety First—For You and Your Computer."

You need the following items to perform the procedures in this section:

l The Dell Precision ResourceCD

l A small flat-blade screwdriver and a #1 Phillips-head screwdriver (or quarter-inch hex-nut driver)

Your system also includes an interior system service label affixed to the inside of the computer cover (see Figure 1 for the location of this label).

This label shows the location of components within the chassis and locations of system board components and connectors. It also contains an

important notice that provides instructions you need to follow to help prevent damage to your system board while you troubleshoot your computer

system.

Figure 1. Mini Tower Chassis Interior Service Label

Safety First—For You and Your Computer

The procedures in this section require that you remove the cover and work inside your computer. While working inside your computer, do not

attempttoservicethecomputerexceptasexplainedinthisguideandelsewhereinDell™documentation.Alwaysfollowtheinstructionsclosely.

Working inside your computer is safe—if you observe the following precautions.

Before you start to work on the computer, perform the following steps:

1. Turn off the computer and all peripherals.

2. Touch an unpainted metal surface on the computer chassis, such as the metal around the card-slot openings at the back of

your computer, before touching anything inside your computer.

Overview

Troubleshooting Expansion Cards

Safety First—For You and Your Computer

Troubleshooting System Memory

Removing and Replacing the Computer Cover

Troubleshooting the Video Subsystem

Troubleshooting a Wet Computer

Troubleshooting the System Board

Troubleshooting a Damaged Computer

Troubleshooting a Dead System Board with the RTCRST Jumper

Troubleshooting the Battery

Troubleshooting Drives

CAUTION FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

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Dell Precision 620 User Manual Page 86