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Super X11DGQ User's Manual
2.4 Memory Support and Installation
Note: Check Supermicro's website for recommended memory modules. Exercise ex-
treme care when installing or removing DIMM modules to prevent any damage.
Memory Support
The motherboard supports up to 3TB 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 slots (*Note 1 below). This motherboard also supports up to 4TB memory with DCPMM
modules installed based on the DCPMM population table on page 37.
Notes: 1. Support for 2933 MHz memory is dependent on the CPU SKU. 2. 16Gb-based
memory modules are supported by 2nd Gen Intel Xeon Scalable-SP processors only.
Memory Installation Sequence
Memory modules for the X11 UP/DP/MP motherboards 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, 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.
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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