Memory
modules
(DIMMs)
The
following
notes
describe
the
types
of
dual
inline
memory
modules
(DIMMs)
that
the
blade
server
supports
and
other
information
that
you
must
consider
when
installing
DIMMs:
v
The
system
board
contains
four
DIMM
connectors
and
supports
two-way
memory
interleaving.
v
As
of
the
date
of
this
publication,
the
DIMM
options
that
are
available
for
the
blade
server
are
512
MB,
1
GB,
and
2
GB.
Depending
on
the
memory
configuration
set
in
blade
server
BIOS,
as
of
the
date
of
this
publication,
the
blade
server
can
support
a
minimum
of
1
GB
and
a
maximum
of
8
GB
of
system
memory.
v
For
optimum
performance,
one
pair
of
DIMMs
is
associated
with
each
microprocessor.
The
blade
server
comes
with
two
DIMMs
installed
for
each
microprocessor.
Pair
DIMM
connectors
Microprocessor
1
1
(J31)
and
2
(J30)
Microprocessor
2
3
(J4)
and
4
(J2)
v
One
pair
of
DIMMs
can
be
used
when
two
microprocessors
are
installed,
but
the
blade
server
will
operate
at
a
lower
level
of
efficiency.
When
one
microprocessor
is
installed,
you
can
only
install
DIMMs
in
the
DIMM
connectors
that
are
associated
with
the
microprocessor.
v
When
you
install
memory,
you
must
install
a
pair
of
matched
DIMMs.
v
Both
DIMMs
in
a
pair
must
be
the
same
size,
speed,
type,
technology,
and
physical
design.
You
can
mix
compatible
DIMMs
from
different
manufacturers.
v
The
second
pair
does
not
have
to
be
DIMMs
of
the
same
size,
speed,
type,
technology,
and
physical
design
as
the
first
pair.
v
Install
only
2.6
V,
184-pin,
DDR1,
PC3200,
VLP,
registered
SDRAM
with
ECC
DIMMs.
For
a
current
list
of
supported
DIMMs
for
the
blade
server,
see
the
ServerProven
list
at
http://www.ibm.com/pc/us/compat/.
v
Installing
or
removing
DIMMs
changes
the
configuration
information
for
the
blade
server.
After
installing
or
removing
a
DIMM,
you
must
change
and
save
the
new
configuration
information
by
using
the
Configuration/Setup
Utility
program.
When
you
restart
the
blade
server,
it
displays
a
message
indicating
that
the
memory
configuration
has
changed.
Start
the
Configuration/Setup
Utility
program
and
select
Save
Settings
.
See
for
more
information.
Chapter
4.
Removing
and
replacing
blade
server
components
67
Summary of Contents for Opteron LS20
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