Working inside your computer, Before you begin, Overview – Dell OptiPlex E1 User Manual
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Working Inside Your Computer: Dell™ OptiPlex™ E1 Managed PC
Removing and Replacing the Expansion-Card Cage
Overview
Your Dell computer system supports a variety of internal options that expand system capabilities. This chapter prepares you to
install options inside the computer. It describes how to remove and replace the computer cover and expansion-card cage. It also
familiarizes you with the internal components you may handle if you install Dell hardware options.
Before You Begin
To make working inside your computer easier, make sure you have adequate lighting and a clean work space. If you temporarily
disconnect cables or remove expansion cards, note the position of the connectors and slots so that you can reassemble the system
correctly.
You will use the information in this section every time you install a hardware option inside your computer. Read this section
carefully, because the information is not repeated in detail elsewhere in this guide.
Safety First—For You and Your Computer
Working inside your computer is safe—if you observe the following precautions.
WARNING
FOR YOUR PERSONAL SAFETY AND PROTECTION OF YOUR EQUIPMENT
Before starting to work on your computer, perform the following steps in the sequence indicated:
1. Turn off your computer and all peripherals.
2. Disconnect your computer and peripherals from their AC power sources. Also, disconnect any telephone or
telecommunication lines from the computer. Doing so reduces the potential for personal injury or shock.
3. If you are disconnecting a peripheral from the computer or are removing a component from the system board, wait
5 seconds after turning off the computer before disconnecting the peripheral or removing the component to avoid
possible damage to the system board.
4. Touch an unpainted metal surface on the computer chassis, such as the power supply, before touching anything
inside your computer.
While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static
electricity that might harm internal components. Also avoid touching components or contacts on a card and avoid
touching pins on a chip.
In addition, Dell recommends that you periodically review the safety instructions at the front of this guide.
Unpacking Your Hardware Option
When you remove an option from its shipping carton, you may find it wrapped in antistatic packing material designed to protect it
from electrostatic damage. Do not remove the packing material until you are ready to install the option.