v
If
you
install
a
second
microprocessor,
the
board
that
comes
with
the
microprocessor
option
(microprocessor
board)
contains
four
DIMM
connectors
for
microprocessor
2.
You
must
install
at
least
one
pair
of
DIMMs
in
the
DIMM
connectors
on
the
microprocessor
board.
v
You
can
add
a
second
pair
of
DIMMs
for
either
microprocessor
at
any
time.
It
is
not
necessary
to
add
a
second
pair
of
DIMMs
for
microprocessor
1
before
adding
a
second
pair
of
DIMMs
for
microprocessor
2.
v
The
DIMM
options
that
are
available
for
the
computer
are
512
MB,
1
GB,
and
2
GB.
The
PC2700
DIMMs
are
available
in
2
GB
only.
The
computer
supports
a
minimum
of
1
GB
and
a
maximum
of
16
GB
of
system
memory.
Note:
Although
the
computer
supports
a
maximum
of
16
GB
of
system
memory,
the
Microsoft
Windows
XP
operating
systems
recognize
and
support
a
maximum
of
4
GB
of
system
memory.
v
The
computer
comes
with
two
512
MB
or
1
GB
memory
DIMMs
installed.
v
Install
only
2.5
V,
184-pin,
double-data-rate
(DDR),
PC2700
(2
GB
DIMMs
only)
or
PC3200,
registered,
buffered
synchronous
dynamic
random-access
memory
(SDRAM)
with
error
correcting
code
(ECC)
DIMMs.
These
DIMMs
must
be
compatible
with
the
latest
PC2700
or
PC3200
SDRAM
registered,
buffered
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
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
other
pairs.
You
can
mix
compatible
DIMMs
from
various
manufacturers.
v
The
first
pair
of
DIMMs
on
the
system
board
are
installed
in
DIMM
connectors
1
and
2.
If
you
install
a
second
pair
of
DIMMs
for
microprocessor
1,
install
the
pair
in
DIMM
connectors
3
and
4.
The
following
illustration
shows
the
system
board
DIMM
installation
sequence.
Installation
sequence
on
system
board
DIMMs
Slots
First
pair
of
DIMMs
1,
2
Second
pair
of
DIMMs
3,
4
v
If
you
install
a
second
microprocessor
(microprocessor
2),
install
the
first
pair
of
DIMMs
for
the
microprocessor
in
DIMM
connectors
5
and
6
on
the
microprocessor
option
board.
If
you
install
a
second
pair
of
DIMMs
for
the
microprocessor,
install
the
pair
in
DIMM
connectors
7
and
8
on
the
microprocessor
board.
See
“Installing
a
second
microprocessor”
on
page
33
for
more
information
about
the
microprocessor
option.
The
following
illustration
shows
the
microprocessor
board
DIMM
installation
sequence.
Installation
sequence
on
microprocessor
board
DIMMs
Slots
First
pair
of
DIMMs
5,
6
Second
pair
of
DIMMs
7,
8
v
Your
computer
supports
two-way
memory
interleaving
across
the
memory
banks
for
each
microprocessor.
v
The
amount
of
usable
memory
will
be
reduced
depending
on
the
system
configuration.
A
certain
amount
of
memory
must
be
reserved
for
system
Chapter
2.
Installing
the
hardware
31
Summary of Contents for 62174DU - IntelliStation A - Pro 6217
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