3Com 3C900B Installation And Operating Instructions Manual page 17

1. Turn off your computer and unplug it from
the electrical outlet.
2. Unplug any peripheral devices (printer,
monitor, keyboard, mouse, etc.) from the
computer.
TIP:
Before you unplug anything,
label the cords or make a sketch of how
things are connected. This can be
helpful when you plug things back in
later.
CAUTION :
electric shock, make sure your computer
and all peripheral devices are turned off
and unplugged.
M I
ODEM NSTALLATION WITH
To avoid the risk of
W 3.
INDOWS X
3. Remove the screws from your computer's
cover and then remove the cover, as shown
in the following diagrams. Your computer
may differ in appearance from these
diagrams, but the basic principle for
removing the cover should be the same.
Contact your computer manufacturer or
review their manual if you need further
instructions.
13