Dell OptiPlex E1 Reference And Installation Manual page 83

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.
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.
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Working inside your computer is safe—if you observe the following precautions.
Working Inside Your Computer 5-1