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channel 3: memory sockets B4, B8, and B12
Processor 3 channel 0: memory sockets C1, C5, and C9
channel 1: memory sockets C2, C6, and C10
channel 2: memory sockets C3, C7, and C11
channel 3: memory sockets C4, C8, and C12
Processor 4 channel 0: memory sockets D1, D5, and D9
channel 1: memory sockets D2, D6, and D10
channel 2: memory sockets D3, D7, and D11
channel 3: memory sockets D4, D8, and D12
The following table shows the memory populations and operating frequencies for the supported
configurations.
Processor type DIMM type DIMMs
populated/
channel
Operating
frequency (in MT/s)
Maximum DIMM rank/
channel
1.2 V
Intel Xeon
Processor E5–
4600 v3
RDIMM 1 2133, 1866, 1600,
and 1333
single and dual rank
2 2133, 1866, 1600,
and 1333
single and dual rank
3 1866, 1600, and 1333 single and dual rank
LRDIMM 1 2133, 1866, 1600,
and 1333
quad rank
2 2133, 1866, 1600,
and 1333
quad rank
3 1866, 1600, and 1333 quad rank
General memory module installation guidelines
Your system supports Flexible Memory Configuration, enabling the system to be configured and run in
any valid chipset architectural configuration. The following are the recommended guidelines for best
performance:
• RDIMMs and LRDIMMs must not be mixed.
• x4 and x8 DRAM based DIMMs can be mixed. For more information, see Mode-Specific Guidelines.
• Up to three dual- or single-rank RDIMMs can be populated per channel.
• Up to three LRDIMMs can be populated regardless of rank count.
• Populate DIMM sockets only if a processor is installed. For dual-processor systems, sockets A1 to A12
and B1 to B12 are available. For four-processor systems, sockets A1 to A12, B1 to B12, C1 to C12, and
D1 to D12 are available.
• Populate the sockets by highest rank count in the following order - first in sockets with white release
levers, then black, and then green. For example, to mix dual-rank and single-rank DIMMs, populate
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