Dell Precision T3400 (Late 2007) - Manual (Page 248)

248
Adding and Replacing Parts
11 Replace the computer cover (see "Replacing the Computer Cover" on
page 262).
NOTICE:
To connect a network cable, first plug the cable into the network port or
device and then plug the cable into the computer.
12 Connect your computer and devices to electrical outlets, and turn
them on.
Battery
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.
1 heat-sink assembly 2 heat-sink assembly bracket
3 captive screw housing (2)
3
1
2