Memory Support And Installation; Memory Support - Supermicro X11SRi-IF User Manual

2.5 Memory Support and Installation

Note: Check the Supermicro website for recommended memory modules.
Important: Exercise extreme care when installing or removing DIMM modules to pre-
vent any possible damage.

Memory Support

The X11SRi-IF supports up to 128GB of RDIMM and 256GB of LRDIMM DDR4 (288-pin) ECC
memory with speeds of up to 2666 MHz in four memory slots. Refer to the tables below for
the recommended DIMM population order and additional memory information.
Number of DIMMs
1
2
3 (Unbalanced: not recommended)
4
Ranks Per DIMM
Type
and Data Width
RDIMM
RDIMM
RDIMM
RDIMM
LRDIMM
1 CPU, 4-DIMM Slots
DIMM Capacity
(GB)
DRAM Density
4Gb
SRx4 8GB
SRx8 4GB
DRx8 8GB
DRx4 16GB
QRx4 32GB
31
Memory Population Sequence
DIMMA1
DIMMA1 / DIMMC1
DIMMA1 / DIMMC1 / DIMMB1
DIMMA1 / DIMMC1 / DIMMB1 / DIMMD1
Speed (MT/s), Voltage (V),
Slot Per Channel (SPC),
and DIMMs Per Channel (DPC)
1 Slot Per
Channel
1DPC
8Gb 1.2V
16GB
8GB
16GB 2666
32GB
64GB
Chapter 2: Installation
2 Slots Per Channel
1DPC 2DPC
1.2V 1.2V
2666 2666