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This chart outlines the rules for populating memory
(Note: X indicates a populated DIMM Slot)
DIMM Slot
128Bit support
CPU1 DIMM1
X
X
X
X
X
X
X
X
CPU1 DIMM2
X
X
X
X
X
X
X
X
CPU1 DIMM3
X
X
X
X
X
X
X
X
CPU1 DIMM4
X
X
X
X
X
X
X
X
CPU2 DIMM1
X
X
X
X
X
X
X
X
CPU2 DIMM2
X
X
X
X
X
X
X
X
CPU2 DIMM3
X
X
X
X
X
X
X
X
CPU2 DIMM4
X
X
X
X
X
X
X
X
DIMM Slot
64-Bit Support
CPU1 DIMM1
X
X
X
X
X
X
CPU1 DIMM3
X
X
X
X
X
X
X
CPU2 DIMM1
X
X
X
X
X
X
X
CPU2 DIMM3
X
X
X
X
X
X
Memory Installation Procedure
When you install the memory modules, make sure the module aligns properly with the
memory slot. The modules are keyed to ensure that it is inserted only one way. The
method of installing memory modules are detailed by the following diagrams.
Once the memory modules are firmly seated in the slot, two latches on either side will
close and secure the module into the slot. Sometimes you may need to close the
latches yourself.
