Memory Support And Installation; Memory Support - Supermicro X11DAi-N User Manual

2.4 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 damage.

Memory Support

The X11DAi-N supports up to 2048 GB of Load Reduced DIMM (LRDIMM), Registered DIMM
(RDIMM), Non-Volatile DIMM (NV-DIMM) DDR4 (288-pin) ECC 2133/2400/2666 MHz memory
modules in 16 slots. 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 first DIMM module on
the blue memory slot, which is the first memory slot of a memory channel, and then
populate the second DIMM in the black slot if 2DPC memory configuration 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.
Type
RDIMM
RDIMM
RDIMM
RDIMM
RDIMM 3Ds
RDIMM 3Ds
LRDIMM
LRDIMM 3Ds
Type
RDIMM
RDIMM
RDIMM
RDIMM
RDIMM 3Ds
RDIMM 3Ds
LRDIMM
LRDIMM 3Ds
DDR4 Memory Support (for 2-Slot Per-Channel Configuration)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
Ranks
DIMM Capacity
Per
(GB)
DIMM
1DPC (1-DIMM per Channel)
and Data
Width
4 Gb 8 Gb
SRx4 8 GB 16 GB
SRx8 4 GB 8 GB
DRx8 8 GB 16 GB
DRx4 16 GB 32 GB
QRX4 N/A 2H-64GB
8RX4 N/A 4H-128GB
QRx4 32 GB 64 GB
QRX4 N/A 2H-64GB
8Rx4 N/A 4H-128 GB
DDR4 Memory Support (for 1-Slot Per-Channel Configuration)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
Ranks
DIMM Capacity
Per
(GB)
DIMM
and Data
Width
4 Gb 8 Gb
SRx4 8 GB 16 GB
SRx8 4 GB 8 GB
DRx8 8 GB 16 GB
DRx4 16 GB 32 GB
QRX4 N/A 2H-64GB
8RX4 N/A 4H-128GB
QRx4 32 GB 64 GB
QRX4 N/A 2H-64GB
8Rx4 N/A 4H-128 GB
33
2 Slots per Channel
2DPC (2-DIMM per Channel)
1.2 V 1.2 V
2666 2666
2666 2666
2666 2666
2666 2666
2666 2666
2666 2666
2666 2666
2666 2666
2666 2666
1 Slot per Channel
1DPC (1-DIMM per Channel)
1.2 V
2666
2666
2666
2666
2666
2666
2666
2666
2666
Chapter 2: Installation