IBM thinkcentre 8189 User Manual
v
Always
handle
components
carefully.
Handle
adapters
and
memory
modules
by
the
edges.
Never
touch
any
exposed
circuitry.
v
Prevent
others
from
touching
components.
v
When
you
install
a
new
option,
touch
the
static-protective
package
containing
the
option
to
a
metal
expansion-slot
cover
or
other
unpainted
metal
surface
on
the
computer
for
at
least
two
seconds.
This
reduces
static
electricity
in
the
package
and
your
body.
v
When
possible,
remove
the
option
and
install
it
directly
in
the
computer
without
setting
the
option
down.
When
this
is
not
possible,
place
the
static-protective
package
that
the
option
came
in
on
a
smooth,
level
surface
and
place
the
option
on
it.
v
Do
not
place
the
option
on
the
computer
cover
or
other
metal
surface.
Installing
external
options
This
section
shows
the
various
external
connectors
on
your
computer
to
which
you
can
attach
external
options,
such
as
external
speakers,
a
printer,
or
a
scanner.
For
some
external
options,
you
must
install
additional
software
in
addition
to
making
the
physical
connection.
When
adding
an
external
option,
use
the
information
in
this
section
to
identify
the
required
connector,
and
then
use
the
instructions
that
come
with
the
option
to
help
you
make
the
connection
and
install
any
software
or
device
drivers
that
are
required
for
the
option.
Locating
the
connectors
on
the
front
of
your
computer
The
following
illustration
shows
the
locations
of
the
connectors
on
the
front
of
the
computer.
1USB
connector
3Microphone
connector
(some
models)
2USB
connector
4Headphone
connector
(some
models)
6
User
Guide