Checking Inside The Computer; R Emoving And Replacing The Computer Covers - Dell 4100 Installation And Troubleshooting Manual

Chapter 7

Checking Inside the Computer

T
his 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
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.
S
afety 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.
-inch hex-nut
1/4
In addition, Dell recommends that you periodically
review the safety instructions at the front of this guide.
R
Computer Covers
To troubleshoot problems inside the computer, you need
to remove one or both of the computer covers.
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.
emoving and Replacing the
Checking Inside the Computer 7-1