Dell Precision T3400 (Late 2007) - Manual (Page 240)

240
Adding and Replacing Parts
9 Enter System Setup (see "Entering System Setup" on page 81) and enable
the drive.
10 Verify 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.
1 Follow the procedures in "Before You Begin" on page 143.
2 Remove the computer cover (see "Removing the Computer Cover" on
page 145).