SuperStorage SSG-1129P-ACR10N4L User's Manual
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Memory Support
The X11DPD-M25 supports up to 4TB of 3DS Load Reduced DIMM (3DS LRDIMM), Load
Reduced DIMM (LRDIMM), 3DS Registered DIMM (3DS RDIMM), Registered DIMM (RDIMM),
Non-Volatile DIMM (NV-DIMM) DDR4(288-pin) ECC 2933*/2666/2400/2133 MHz memory in
16 memory slots. This motherboard also supports up to 2TB memory with DCPMM modules
installed based on the DCPMM population table shown later in this section.
*Support for 2933MHz memory is dependent on the CPU SKU.
Notes:
1.
Be sure to use DIMMs of the same type and speed. Mixing DIMMs with different
types and speeds is not allowed.
2.
When installing DIMMs, be sure to populate the first
DIMM to the blue memory slot, which is the first memory slot of a memory channel, and then
populate the second DIMM in the black slot if 2DPC memory configuration is used.
3.
Memory
speed is dependent on the type of processors used in your system.
4.
Populating DDR4
memory modules in a two-DIMMs per-channel (2DPC) configuration on this motherboard
will affect memory bandwidth and performance.
5.
Unbalanced memory configurations are
not recommended.
6.
16Gb-based memory modules are supported by 2nd Gen Intel Xeon
Scalable-SP processors only.
Memory Installation Sequence
Memory modules for this motherboard are 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, the second module of the channel. When installing memory modules, be sure to
populate the blue memory slots first and then populate the black slots. To maximize memory
capacity and performance, please populate all DIMM slots on the motherboard, including all
blue slots 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.
