additional
hard
disk
drive,
you
must
change
the
switch
or
jumper
setting
on
the
CD-ROM
drive
to
make
the
drive
a
subordinate
device,
set
the
switch
or
jumper
setting
on
the
new
drive
to
master,
and
change
the
connector
used
for
the
CD-ROM
drive
to
the
gray
middle
connector.
The
new
drive
will
be
connected
to
the
black
master
IDE
device
connector.
–
Serial
ATA:
The
narrower,
black
signal
cable
has
two
connectors.
One
is
attached
to
the
serial
ATA
drive,
and
the
other
is
attached
to
the
connector
on
the
system
board.
Each
serial
ATA
drive
comes
with
a
cable.
If
you
install
an
additional
serial
ATA
drive,
you
will
need
an
additional
cable.
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.
Notes:
1.
When
you
restart
the
computer
after
adding
or
removing
a
DIMM,
the
computer
displays
a
message
that
the
memory
configuration
has
changed.
2.
Your
IntelliStation
M
Pro
Type
6220
computer
uses
industry-standard,
PC2700
or
PC3200
double-data-rate
(DDR)
dual
inline
memory
modules
(DIMMs).
3.
The
system
board
contains
four
DIMM
connectors
and
supports
two-way
memory
interleaving.
4.
The
DIMM
options
available
for
your
computer
are
256
MB,
512
MB,
and
1
GB
memory
modules
.
Your
computer
supports
a
minimum
of
256
MB
and
a
maximum
of
4
GB
of
system
memory.
5.
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.
6.
Your
computer
comes
with
either
one
or
two
256
MB,
512
MB,
or
1
GB
memory
DIMMs
installed.
If
your
computer
has
one
DIMM
installed,
when
you
install
an
additional
DIMM,
it
must
be
installed
in
DIMM
3
memory
connector
and
must
be
the
same
size,
speed,
type,
and
technology
as
the
DIMM
installed
in
DIMM
1
memory
connector.
You
can
mix
compatible
DIMMs
from
various
manufacturers.
When
one
DIMM
is
installed
in
the
computer,
the
computer
runs
as
a
single-channel
computer.
When
you
add
a
DIMM
in
DIMM
3
memory
connector,
your
computer
defaults
to
a
dual-channel
computer.
7.
DIMMs
must
be
installed
in
matched
pairs.
The
first
pair
of
DIMMs
you
install
in
DIMM
1
and
DIMM
3
memory
connectors
must
be
the
same
size,
speed,
type,
and
technology.
You
can
mix
compatible
DIMMs
from
various
manufactures.
If
you
install
a
second
pair
of
DIMMs
in
DIMM
2
and
DIMM
4
memory
connectors,
they
do
not
have
to
be
the
same
size,
speed,
type,
and
technology
as
the
DIMMs
installed
in
DIMM
1
and
DIMM
3
memory
connectors.
However,
the
size,
speed,
type,
and
technology
of
the
DIMMs
you
install
in
DIMM
2
and
DIMM
4
memory
connectors
must
match
each
other.
8.
Install
only
2.5
V,
184-pin,
double-data-rate
(DDR)
333
or
400,
PC2700
or
PC3200,
unbuffered
synchronous
dynamic
random-access
memory
(SDRAM)
with
error
correcting
code
(ECC)
DIMMs.
These
DIMMs
must
be
compatible
with
the
latest
PC2700
or
PC3200
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.
Complete
the
following
steps
to
install
a
DIMM:
Chapter
4.
Installing
options
45
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