Dell 4100/200, 4100/180 manual Checking Inside the Computer, Safety First-For You and the Computer

Chapter 7

Checking Inside the Computer

This chapter provides troubleshooting procedures for components inside the computer. Before you start any of the procedures in this chapter, do the following:

•Perform the procedures described in “Checking Con- nections and Switches” and “The System Setup Program” in Chapter 2.

•Read the safety instructions in “Safety First—For You and the Computer” found next in this chapter.

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

•The Dell Server Assistant CD

•The system documentation

•A #1 Phillips-head screwdriver (or 1/4-inch hex-nut driver)

•The key to the system keylocks

NOTE: When you see the question, “Is the problem resolved?” in a troubleshooting procedure, perform the opera- tion that caused the problem.

Safety First—For You and the Computer

The procedures in this chapter require that you remove the covers and work inside the computer. While working inside the computer, do not attempt to service the com- puter except as explained in this guide and elsewhere in Dell documentation. Always follow the instructions closely.

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

WARNING FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before starting to work on the computer, perform the following steps in the sequence indicated:

1.Turn off the computer and all peripherals.

2.Disconnect the computer and peripherals from their power sources. Doing so reduces the potential for personal injury or shock.

3.Touch an unpainted metal surface on the com- puter chassis, such as the power supply, before touching anything inside the computer.

While you work, periodically touch an unpainted metal surface on the computer chas- sis to dissipate any static electricity that might harm internal components.

In addition, Dell recommends that you periodically review the safety instructions at the front of this guide.

Removing and Replacing the Computer Covers

To troubleshoot problems inside the computer, you need to remove one or both of the computer covers.

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