Supermicro X11SCM-LN8F - 2.4 Memory Support and Installation; Memory Support

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Chapter 2: Installation
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.
Memory Support
The X11SCM-LN8F/-F and X11SCL-LN4F supports up to 128GB of unbuffered (UDIMM)
DDR4 (288-pin) ECC memory (2-DIMM per channel) with speeds of up to 2666MHz in four
memory slots. Refer to the tables below for the recommended DIMM population order and
additional memory information.
DIMM Type
Ranks Per DIMM
and Data Width
DIMM Capacity
(GB)
Speed (MT/s), Voltage (V),
Slot Per Channel (SPC),
and DIMM Per Channel (DPC)
2 Slots Per Channel
DRAM Density 1DPC 2DPC
4Gb 8Gb 16Gb 1.2V 1.2V
Unbuffered
DDR4 ECC
SR
16GB
(4x 4GB DIMMs)
32GB
(4x 8GB DIMMs)
64GB
(4x 16GB DIMMs)
2666 2666
DR
32GB
(4x 8GB DIMMs)
64GB
(4x 16GB DIMMs)
128GB
(4x 32GB DIMMs)
1 CPU, 4-DIMM Slots
Number of DIMMs Memory Population Sequence
1 DIMMB2
2 DIMMB2 / DIMMA2
3
(Unbalanced: Not Recommended)
DIMMB2 / DIMMA2 / DIMMB1
4 DIMMB2 / DIMMA2 / DIMMB1 / DIMMA1