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Chapter 3: Maintenance and Component Installation
3.4 Memory Support and Installation
The X11SPA-T supports up to 768GB of ECC RDIMM, 3TB of 3DS RDIMM, 1.5TB of LRDIMM,
and 3TB of 3DS LRDIMM DDR4 (288-pin) ECC memory with speeds of up to 2933MHz in 12
memory slots. Refer to the tables below for the recommended DIMM population order and
additional memory information. (1DPC and 2DPC are recommended for memory installation.)
Note:
2933MHz memory is supported by 2
nd
Generation Intel Xeon Scalable-SP (82XX/62XX
series) and W-32XX series processors.
Memory Installation Sequence
Memory modules for this motherboard is populated using the "Fill First" method. The blue
memory slot of each channel is considered the first DIMM module of the channel, and the
black slot is considered the second module of the channel. When installing memory modules,
be sure to populate the blue memory slots first, and then the black slots. To maximize memory
capacity and performance, please populate all DIMM slots on the motherboard, including all
blue and black slots.
General Memory Population Requirements
1. Be sure to use the memory modules of the same type and speed on the motherboard.
Mixing of memory modules of different types and speeds is not allowed.
2. Using unbalanced memory topology such as populating two DIMMs in one channel while
populating one DIMM in another channel on the same motherboard will result in reduced
memory performance.
3. Populating memory slots with a pair of DIMM modules of the same type and size will
result in interleaved memory, which will improve memory performance.
