Dell Precision T3400 (Late 2007) - Manual (Page 252)

252
Adding and Replacing Parts
I/O-Panel Components
Removing the I/O Panel
1 Follow the procedures in "Before You Begin" on page 143.
2 Remove the computer cover (see "Removing the Computer Cover" on
page 145).
NOTE:
To loosen the two captive screws on each side of the heat-sink assembly,
you need a long Phillips screwdriver.
1 USB port 2 diagnostic, hard-drive access,
and network integrity lights
3 headphone connector 4 microphone connector
2
3
4
1