If
you
have
other
options
to
install
or
remove,
do
so
now;
otherwise,
go
to
“Completing
the
installation”
on
page
49.
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
333
MHz,
1.8V,
240
pin,
PC2-3200
single-ranked
double
data-rate
(DDR)
II,
registered
synchronous
dynamic
random-access
memory
(SDRAM)
with
error
correcting
code
(ECC)
DIMMs.
These
DIMMs
must
be
compatible
with
the
latest
PC2-3200
SDRAM
Registered
DIMM
specifications.
For
a
list
of
the
supported
options
for
the
server,
see
http://www.ibm.com/servers/
eserver/serverproven/compat/us/.
v
The
server
supports
up
to
four
memory
cards.
Each
memory
card
holds
up
to
four
DIMMs.
v
There
must
be
at
least
one
memory
card
with
one
pair
of
DIMMs
installed
for
the
server
to
operate.
v
When
you
install
additional
DIMMs
on
a
memory
card,
be
sure
to
install
them
in
pairs.
All
the
DIMM
pairs
on
each
memory
card
must
be
the
same
size
and
type.
v
DIMMs
can
be
hot-added
once
without
having
to
reconfigure
the
server.
If
you
hot-add
additional
DIMMs,
you
must
reconfigure
the
server
using
the
Configuration/Setup
Utility
program.
v
Add
odd-numbered
DIMMs
to
each
available
memory
card
first,
and
then
add
the
even-numbered
pairs.
v
You
do
not
have
to
save
new
configuration
information
to
the
BIOS
when
installing
or
removing
DIMMs.
The
only
exception
is
if
you
replace
a
DIMM
that
was
marked
as
Disabled
in
the
Memory
Settings
menu.
In
this
case,
you
must
re-enable
the
row
in
the
Configuration/Setup
Utility
program
or
reload
the
default
memory
settings.
v
When
you
restart
the
server
after
adding
or
removing
a
DIMM,
the
server
displays
a
message
that
the
memory
configuration
has
changed.
v
Install
the
DIMMs
on
each
memory
card
in
the
order
shown
in
the
following
tables,
depending
on
which
memory
configuration
you
want
to
use.
Each
memory
card
must
have
at
least
one
pair
of
DIMMs.
Table
3.
Primary
memory
card
installation
sequence
Installation
order
Memory
card
DIMM
pair
First
1
1
and
3
Second
2
1
and
3
Third
3
1
and
3
Fourth
4
1
and
3
Fifth
1
2
and
4
Sixth
2
2
and
4
Seventh
3
2
and
4
Eighth
4
2
and
4
Chapter
2.
Installing
options
35
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