Supermicro X11DPU - Memory Support and Installation

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Super X11DPU User's Manual
Memory Support
The X11DPU supports up to 1536 GB of Load Reduced DIMM (LRDIMM),
Registered DIMM (RDIMM), Non-Volatile DIMM (NV-DIMM) DDR4 (288-pin) ECC
2666/2400/2133/1866/1600/1333 MT/s modules in 24 slots memory slots. Populating
the DDR4 memory module in 2DPC system conguration on this MBD will affect memory
bandwidth performance. Populating these DIMM modules with a pair of memory modules
of the same type and size will result in interleaved memory, which will improve memory
performance.
Notes: 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. When installing memory modules, be sure to populate the rst DIMM module on
the blue memory slot, which is the rst memory slot of a memory channel, and then
populate the second DIMM in the black slot if 2DPC memory conguration is used. 3.
Using unbalanced memory topology by populating two DIMMs in one channel while
populating one DIMM in another channel will result in reduced memory performance.
4. Memory speed is dependent on the type of processors used in your system. 5.
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.
DIMM Module Population Conguration
For optimal memory performance, follow the table below when populating memory.
DDR4 Memory Support for the Intel Xeon Scalable Processor Platform
Type
Ranks
Per
DIMM
and Data
Width
DIMM Capacity
(GB)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
2 Slots per Channel
1DPC (1-DIMM per Channel) 2DPC (2-DIMM per Channel)
4 Gb 8 Gb 1.2 V 1.2 V
RDIMM SRx4 8 GB 16 GB 2666 2666
RDIMM SRx8 4 GB 8 GB 2666 2666
RDIMM DRx8 8 GB 16 GB 2666 2666
RDIMM DRx4 16 GB 32 GB 2666 2666
RDIMM 3Ds
QRX4 N/A 2H-64GB 2666 2666
8RX4 N/A 4H-128GB 2666 2666
LRDIMM QRx4 32 GB 64 GB 2666 2666
LRDIMM 3Ds
QRX4 N/A 2H-64GB 2666 2666
8Rx4 N/A 4H-128 GB 2666 2666
2.4 Memory Support and Installation
Note: Check the Supermicro website for recommended memory modules. Exercise
extreme care when installing or removing DIMM modules to prevent any damage.