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Memory removal and installation
Each processor has three memory channels (1, 2 and 3 ) and each channel has two slots - A (PxDIMM1A,
2A, 3A in blue) and B (PxDIMM1B, 2B, 3B in black). So, the system has a total of twelve memory slots. The
memory slots support DDR3-1333 registered/unbuffered ECC memory modules.
The folllowing illustration shows the processor 1 memory slots (1) and processor 2 memory slots (2).
Independent mode
For all memory modes, slot A in each channel should be populated first and then slot B. If slot A is
•
empty, then slot B cannot be used.
For a single-processor server configuration, install the processor to CPU1 socket and the memory
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modules in slots P1DIMM 1A to P1DIMM 3B.
If there is a processor installed in CPU2 socket, the system will enable the slots P2DIMM 1A to
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P2DIMM 3B.
It is recommended to install the DIMM modules in the following sequence:
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For single processor
Populate slot 1A first, followed by slots 2A, 3A,1B, 2B and 3B.
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The memory slots for processor 2 are not available.
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For dual processors
Populate DIMM slots 1A of each CPU first, followed by slots 2A, 3A,1B, 2B and 3B.
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Install DIMM modules of the same type, size, and manufacturer in the same colored DIMM slots.
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Memory population for independent mode
Single processor configuration
Single processor
Processor 1 P1DIMM slots
Channel 1
Configuration
1B
1A
A
X
B
X
C
X
D
X
X
E
X
X
Dual processor configuration
Processor 1 P1DIMM slots
Hardware removal and installation
Channel 2
Channel 3
2B
2A
3B
3A
X
X
X
X
X
X
X
X
X
Dual processors
Processor 2 P2DIMM slots
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