This system supports Registered ECC (RDIMM) or Load Reduced (LRDIMM) memory. Mixing RDIMM and LRDIMM is not supported within this system.
If only one processor is installed, only 12 DIMM slots are available. When populating with four processors 48 DIMM slots are available.
Depending on the memory configuration and processor model, the memory speed may run at 1600MHz, 1333MHz or 1066MHz. See latest ProLiant QuickSpecs for processor models and supported memory speeds.
4GB DDR3-1333 Reg ECC modules come in two versions: 313/4G using x4 and 3138/4G using x8 DRAM. The two parts may be installed in the same system but not within the same memory bank. Use like modules for dual and triple channel operation.
DDR3-1866 is supported on selective Xeon E5-4600 v2 processor models. DDR3-1600 memory is supported by Xeon E5-4600 and E5-4600 v2 series processors.
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