Dell WHL, WHM manual Opening the Computer Cover

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Before you install any devices or software that did not come with your computer, read the documentation that came with the software or device or contact the vendor to verify that the software or device is compatible with your computer and operating system.

Congratulations! You have completed the setup for your Dell Precision 470 computer.

To access the User’s Guide from your hard drive:

Click the Start button and click Help and Support.

To access your User’s Guide from the Dell Support website:

1Go to support.dell.com.

2Follow the prompts on the website that ask you for information specific to your computer.

3At the Dell Support website home page, click the User Guides link under Product Support, click Systems, and then select your Dell Precision computer.

Opening the Computer Cover

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

1Shut down the computer through the Start menu.

2Ensure 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.

3Disconnect any telephone or telecommunication lines from the computer.

4Disconnect your computer and all attached devices from electrical outlets, and then press the power button to ground the system board.

5If 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.

6Lay the computer on its side as shown in the following illustrations.

NOTICE: Ensure that sufficient space exists to support the open cover—at least 30 cm (1 ft) of desk top space.

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Quick Reference Guide