DELL 4501 User Manual

44

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Opening the Computer Cover

  CAUTION: Before you begin any of the procedures in this section, 

follow the safety instructions in the System Information Guide.

1

Shut down the computer through the 

Start menu.

2

Ensure that your computer and attached devices are turned off. If your 
computer and attached devices did not automatically turn off when 
you shut down your computer, turn them off now.

 NOTICE: To disconnect a network cable, first unplug the cable from your 

computer and then unplug it from the network wall jack.

3

Disconnect any telephone or telecommunication lines from the 
computer.

4

Disconnect your computer and all attached devices from electrical 
outlets, and then press the power button to ground the system board.

5

If you have installed a padlock through the padlock ring on the back 
panel, remove the padlock.

  CAUTION: To guard against electrical shock, always unplug your 

computer from the electrical outlet before opening the cover.

6

Lay the computer on its side as shown in the illustration.

 NOTICE: Ensure that sufficient space exists to support the open cover—at 

least 30 am (1 ft) of desktop space.

7

Open the computer cover:

a

Slide the cover release latch toward the top of the computer.

b

Raise the cover, and pivot it toward the front of the computer.

8

Ground yourself by touching an unpainted metal surface on the 
computer, such as the metal at the back of computer, before touching 
anything inside your computer.

While you work, periodically touch any unpainted metal surface on 
the computer to dissipate any static electricity that could harm 
internal components.