9Enter System Setup (see "Entering System Setup" on page 81) and enable the drive.

10Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on page 107).

Installing the Optional Speaker

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

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer.

1Follow the procedures in "Before You Begin" on page 143.

2Remove the computer cover (see "Removing the Computer Cover" on page 145).

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Adding and Replacing Parts

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Dell T3400 manual Installing the Optional Speaker