Removing
the
cover
To
remove
the
cover,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
v
and
“Installation
guidelines”
on
page
7.
2.
Turn
off
the
server
and
all
attached
devices.
3.
Disconnect
all
external
cables
and
power
cords.
Cover-release
button
4.
Press
the
cover-release
button.
5.
Slide
the
cover
back
approximately
1.27
cm
(0.5
inches);
then,
lift
it
off
the
server.
Attention:
For
proper
cooling
and
airflow,
replace
the
cover
before
turning
on
the
server.
Operating
the
server
for
extended
periods
of
time
(more
than
30
minutes)
with
the
cover
removed
might
damage
server
components.
Installing
a
memory
module
The
following
notes
describe
the
types
of
dual
inline
memory
modules
(DIMMs)
that
the
server
supports
and
other
information
that
you
must
consider
when
installing
DIMMs:
v
The
server
supports
512
MB,
1
GB,
and
2
GB
DIMMs,
for
a
maximum
of
8
GB
of
system
memory.
See
http://www.ibm.com/servers/eserver/serverproven/compat/
us/
for
a
list
of
memory
modules
that
you
can
use
with
the
server.
v
The
amount
of
usable
memory
will
be
reduced
depending
on
the
system
configuration.
A
certain
amount
of
memory
must
be
reserved
for
system
resources.
Use
the
system
summary
in
the
Configuration/Setup
Utility
program
to
view
the
total
amount
of
installed
memory
and
the
amount
of
configured
memory
(see
“Using
the
Configuration/Setup
Utility
program”
on
page
26).
v
The
server
comes
with
one
512
MB
DIMM
installed
in
DIMM
connector
1.
Some
models
come
with
a
second
512
MB
DIMM
installed
in
DIMM
connector
3.
If
one
DIMM
is
installed,
when
you
install
an
additional
DIMM,
it
must
be
installed
in
DIMM
connector
3,
and
it
must
be
the
same
size,
speed,
type,
and
technology
as
the
DIMM
that
is
installed
in
DIMM
connector
1.
You
can
mix
compatible
DIMMs
from
various
manufacturers.
The
third
and
fourth
DIMMs
must
be
installed
as
a
pair,
in
DIMM
connectors
2
and
4.
v
If
you
install
a
pair
of
DIMMs
in
DIMM
connectors
2
and
4,
they
do
not
have
to
be
the
same
size,
speed,
type,
and
technology
as
the
DIMMs
that
are
installed
in
Chapter
2.
Installing
optional
devices
9
Summary of Contents for System x3250
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