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Chapter 2: Installation
Memory Support
The X11SCW-F 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.
2.4 Memory Support and Installation
Notes
: Check the Supermicro website for recommended memory modules. Exercise
extreme care when installing or removing DIMM modules to prevent any damage.
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
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)
128GB
(4x 32GB DIMMs)
2666
2666
DR
32GB
(4x 8GB DIMMs)
64GB
(4x 16GB DIMMs)
128GB
(4x 32GB DIMMs)
