Chapter
4.
Customer
replaceable
units
This
chapter
provides
instructions
for
installing
and
replacing
certain
hardware
components
in
the
computer.
These
instructions
are
intended
for
users
who
are
experienced
with
setting
up
IBM
computer
hardware.
For
a
list
of
supported
options
for
the
computer,
go
to
http://www.ibm.com/pc/support/;
then,
navigate
to
the
list
of
options
for
the
computer.
Installation
guidelines
Before
you
begin
installing
options
in
the
computer,
read
the
following
information:
v
Read
the
safety
information
in
Appendix
B,
“Safety
information,”
on
page
117,
and
the
guidelines
in
“Handling
static-sensitive
devices.”
This
information
will
help
you
work
safely
with
the
computer
and
options.
v
Make
sure
that
you
have
an
adequate
number
of
properly
grounded
electrical
outlets
for
the
computer,
monitor,
and
other
devices
that
you
will
connect
to
the
computer.
v
Back
up
all
important
data
before
you
make
changes
to
disk
drives.
v
Have
a
small
flat-blade
screwdriver
available.
v
When
you
need
to
access
the
inside
of
the
computer
to
install
options,
you
might
find
it
easier
to
lay
the
computer
on
its
side.
v
Blue
on
a
component
indicates
touch
points,
where
you
can
grip
the
component
to
remove
it
from
or
install
it
in
the
computer,
open
or
close
a
latch,
and
so
on.
System
reliability
considerations
To
help
ensure
proper
system
cooling
and
system
reliability,
ensure
that:
v
Each
of
the
drive
bays
has
a
drive
or
a
filler
panel
and
electromagnetic
compatibility
(EMC)
shield
installed
in
it.
v
There
is
adequate
space
around
the
computer
to
allow
the
computer
cooling
system
to
work
properly.
Leave
approximately
50
mm
(2
in.)
of
open
space
around
the
front
and
rear
of
the
computer.
Do
not
place
objects
in
front
of
the
fans.
For
proper
cooling
and
airflow,
replace
the
computer
cover
before
turning
on
the
computer.
Operating
the
computer
for
extended
periods
of
time
(more
than
30
minutes)
with
the
computer
cover
removed
might
damage
computer
components.
v
You
have
followed
the
cabling
instructions
that
come
with
optional
adapters.
v
You
have
replaced
a
failed
fan
as
soon
as
possible.
Handling
static-sensitive
devices
Attention:
Static
electricity
can
damage
electronic
devices
and
the
system.
To
avoid
damage,
keep
static-sensitive
devices
in
their
static-protective
packages
until
you
are
ready
to
install
them.
To
reduce
the
possibility
of
damage
from
electrostatic
discharge,
observe
the
following
precautions:
v
Limit
your
movement.
Movement
can
cause
static
electricity
to
build
up
around
you.
v
Handle
the
device
carefully,
holding
it
by
its
edges
or
its
frame.
v
Do
not
touch
solder
joints,
pins,
or
exposed
circuitry.
v
Do
not
leave
the
device
where
others
can
handle
and
damage
it.
©
Copyright
IBM
Corp.
2004
25
Summary of Contents for IntelliStation A Pro 6224
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