Memory Support And Installation - Supermicro X11DPT-BR User Manual

2.4 Memory Support and Installation

Notes: Check Supermicro's website for recommended memory modules. Exercise
extreme care when installing or removing DIMM modules to prevent any damage.
Memory Support
This motherboard supports up to 6TB 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*/2666MHz memory
in 24 slots (*Note 1 below). This motherboard also supports up to 9TB memory with Intel
Optane PMem 100 series** modules installed based on the Optane PMem population table
in this section below.
Note 1. 2933 MHz memory is supported by 2nd Gen Intel Xeon Scalable-SP (82xx/62xx
series) processors only.
Note 2. Intel Optane PMem 100 series memory is supported by 2nd Gen Intel Xeon
Scalable-SP (82xx/62xx/52xx/4215 series) 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.
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.
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Chapter 2: Installation