User`s guide

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DIMM
A DIMM (Dual Inline Memory Module) is installed in a DIMM socket on the motherboard.
The motherboard features 12 sockets in which DIMMs can be installed. Two 1 GB DIMMs are factory-installed in
connectors DIMM #11 and DIMM #21. (The factory-installed DIMMs may be replaced.)
DIMMs are installed on the sockets in the ascending order of DIMM group numbers in the unit of two modules.
IMPORTANT: Due to the interleaving feature, you must always add two identic DIMMs
at a time. The server will not operate if two DIMMs of different specifications are installed
in a group.
NOTE: To use the memory mirroring and online spare memory feature, see "Using the
Memory RAS Feature" described later.
Group number Socket number in group
Group #1 DIMM #11 and DIMM #21
Group #2 DIMM #31 and DIMM #41
Group #3 DIMM #12 and DIMM #22
Group #4 DIMM #32 and DIMM #42
Group #5 DIMM #13 and DIMM #23
Group #6 DIMM #33 and DIMM #43
IMPORTANT:
 DIMMs are easily affected by static electricity. Before handling a DIMM, discharge the
static electricity of your body by touching a metallic frame section of the server. Do not
touch terminals and components on a DIMM with bare hands. In addition, do not put
the DIMM directly on a desk. For more details on static electricity, see "Static
Precautions".
 Use only DIMM approved by the manufacturer. If an unapproved third party's DIMM is
installed in the server, not only the DIMM but also the server itself may be damaged.
Any repair of a malfunction or defect caused by such a device within the warranty
period will be at your charge.
 An additional 8 GB DIMM cannot be used if a water-cooling heat sink is installed.
DIMM #33
DIMM #32
DIMM #31
DIMM #23
DIMM #22
DIMM #21
DIMM #13
DIMM #12
DIMM #11
DIMM #41
DIMM #42
DIMM #43
Motherboard