IBM 79717au User Guide - Page 36

Installing, additional, memory

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Installing additional memory | 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 blade server system board contains eight DIMM connectors (4 DIMM connectors per processor). If an MPE is installed, there are also eight DIMM connectors (4 DIMM connectors per processor) on the MPE system board. v The system supports Error Correction Code (ECC) protected, industry-standard 240-pin, 72-bit technology Very Low Profile (VLP) Double Data Rate Synchronous DRAM Dual In-Line Memory Modules (DDR-2 SDRAM DIMMs) v The server supports two-way memory interleaving. v Depending on the memory configuration set in blade server BIOS, the blade server can support a minimum of 1 GB and a maximum of 32 GB of system memory for single-width blade servers or a maximum of 64 GB of system memory for blade servers with an MPE installed. v The DIMM options that are available for the blade server are 512 MB, 1 GB, 2 GB, and 4 GB. v All DIMMs must be installed in pairs of the same size, speed, type, technology, and physical design. You can mix compatible DIMMs from different manufacturers. v If you wish to take advantage of Chipkill memory, each DIMM installed in your blade server must support the Chipkill technology. v For a current list of supported DIMMs for the blade server, go to http://www.ibm.com/servers/eserver/serverproven/compat/us/. v For each installed microprocessor, a set of 4 DIMM sockets is enabled (see the following table for more information). 24 BladeCenter LS21 Type 7971 and LS41 Type 7972: Installation and User's Guide

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Installing
additional
memory
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
blade
server
system
board
contains
eight
DIMM
connectors
(4
DIMM
connectors
per
processor).
If
an
MPE
is
installed,
there
are
also
eight
DIMM
connectors
(4
DIMM
connectors
per
processor)
on
the
MPE
system
board.
v
The
system
supports
Error
Correction
Code
(ECC)
protected,
industry-standard
240-pin,
72-bit
technology
Very
Low
Profile
(VLP)
Double
Data
Rate
Synchronous
DRAM
Dual
In-Line
Memory
Modules
(DDR-2
SDRAM
DIMMs)
v
The
server
supports
two-way
memory
interleaving.
v
Depending
on
the
memory
configuration
set
in
blade
server
BIOS,
the
blade
server
can
support
a
minimum
of
1
GB
and
a
maximum
of
32
GB
of
system
memory
for
single-width
blade
servers
or
a
maximum
of
64
GB
of
system
memory
for
blade
servers
with
an
MPE
installed.
v
The
DIMM
options
that
are
available
for
the
blade
server
are
512
MB,
1
GB,
2
GB,
and
4
GB.
v
All
DIMMs
must
be
installed
in
pairs
of
the
same
size,
speed,
type,
technology,
and
physical
design.
You
can
mix
compatible
DIMMs
from
different
manufacturers.
v
If
you
wish
to
take
advantage
of
Chipkill
memory,
each
DIMM
installed
in
your
blade
server
must
support
the
Chipkill
technology.
v
For
a
current
list
of
supported
DIMMs
for
the
blade
server,
go
to
v
For
each
installed
microprocessor,
a
set
of
4
DIMM
sockets
is
enabled
(see
the
following
table
for
more
information).
24
BladeCenter
LS21
Type
7971
and
LS41
Type
7972:
Installation
and
User’s
Guide
|
|
|