Installing
memory
modules
The
following
notes
describe
the
types
of
dual
inline
memory
modules
(DIMMs)
that
your
computer
supports
and
other
information
that
you
must
consider
when
installing
DIMMs:
v
When
you
restart
the
computer
after
adding
or
removing
a
DIMM,
the
computer
displays
a
message
that
the
memory
configuration
has
changed.
v
Your
computer
uses
industry-standard
PC2-3200
double-data-rate
2
(DDR2)
DIMMs.
v
The
system
board
contains
four
DIMM
connectors
and
supports
two-way
memory
interleaving.
v
The
DIMM
options
available
for
your
computer
are
256
MB,
512
MB,
and
1
GB,
which
come
in
matched
pairs.
Your
computer
supports
a
minimum
of
512
MB
and
a
maximum
of
4
GB
of
system
memory.
v
Your
computer
comes
with
either
two
256
MB
or
two
512
MB
memory
DIMMs
that
are
installed
in
DIMM
1
and
DIMM
3
memory
connectors.
The
second
pair
of
DIMMs
must
be
installed
in
DIMM
2
and
DIMM
4
memory
connectors.
v
DIMMs
must
be
installed
in
matched
pairs.
The
DIMMs
in
each
pair
must
be
the
same
size,
speed,
type,
and
technology
as
each
other
but
do
not
have
to
match
the
other
pairs.
You
can
mix
compatible
DIMMs
from
various
manufacturers.
v
Install
only
1.8
V,
240-pin,
DDR2,
PC2-3200,
unbuffered
synchronous
dynamic
random-access
memory
(SDRAM)
with
error
correcting
code
(ECC)
DIMMs.
These
DIMMs
must
be
compatible
with
the
latest
PC2-3200
SDRAM
unbuffered
DIMM
specification.
For
a
list
of
supported
options
for
your
computer,
go
to
http://www.ibm.com/pc/;
then,
select
your
country
and
navigate
to
the
list
of
options
for
your
computer.
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.
The
BIOS
will
display
the
total
amount
of
installed
memory
and
the
amount
of
configured
memory.
Complete
the
following
steps
to
install
a
DIMM:
1.
Read
Appendix
B,
“Safety
information,”
on
page
115
and
the
guidelines
in
“Handling
static-sensitive
devices”
on
page
29.
2.
Turn
off
the
computer
and
all
attached
devices
(see
“Turning
off
the
computer”
on
page
6);
then,
disconnect
all
external
cables
and
power
cords.
3.
Remove
the
side
cover
(see
“Removing
the
side
cover”
on
page
32).
4.
For
easier
access
to
the
memory
modules,
rotate
the
drive
cage
out
of
the
computer.
Grasp
the
drive
cage
and
rotate
it
until
it
locks
into
place.
5.
Locate
the
DIMM
connectors
on
the
system
board.
Determine
the
connectors
into
which
you
will
install
the
DIMMs.
Remember
that
DIMM
1
and
DIMM
3
must
be
paired
together
(and
must
be
the
first
installed
pair)
and
DIMM
2
and
DIMM
4
must
be
paired
together.
The
following
table
shows
the
installation
sequence.
Memory
installation
sequence
DIMMs
Slots
2
DIMMs
1,
3
4
DIMMs
1,
3,
2,
4
6.
Gently
open
the
retaining
clips
and,
if
necessary,
remove
any
existing
DIMM.
54
IntelliStation
M
Pro
Types
6225
and
6228:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
Summary of Contents for IntelliStation M Pro 6225
Page 1: ...IntelliStation M Pro Types 6225 and 6228 Hardware Maintenance Manual and Troubleshooting Guide...
Page 2: ......
Page 3: ...IntelliStation M Pro Types 6225 and 6228 Hardware Maintenance Manual and Troubleshooting Guide...
Page 135: ...Appendix B Safety information 125...
Page 137: ...Appendix B Safety information 127...
Page 139: ...Appendix B Safety information 129...
Page 141: ...Appendix B Safety information 131...
Page 151: ...Appendix B Safety information 141...
Page 153: ...Appendix B Safety information 143...
Page 155: ...Appendix B Safety information 145...
Page 175: ......
Page 176: ...Part Number 25K8120 Printed in USA 1P P N 25K8120...
