Supermicro X11DPI-N-O - DIMM Population Requirements for the 81 Xx;61 Xx;51 Xx;41 Xx;31 Xx Processors

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Super X11DPi-N(T) User's Manual
DIMM Population Requirements for the 81xx/61xx/51xx/41xx/31xx
Processors
For optimal memory performance, follow the tables below when populating memory modules.
Key Parameters for DIMM Confi gurations
Parameters Possible Values
Number of Channels 1, 2, 3, 4, 5, or 6
Number of DIMMs per Channel 1DPC (1 DIMM Per Channel) or 2DPC (2 DIMMs Per Channel)
DIMM Type RDIMM (w/ECC), LRDIMM, 3DS-LRDIMM
DIMM Construction
• non-3DS RDIMM Raw Cards: A/B (2RX4), C (1RX4), D (1RX8), E (2RX8)
• 3DS RDIMM Raw Cards: A/B (4RX4)
• non-3DS LRDIMM Raw Cards: D/E (4RX4)
• 3DS LRDIMM Raw Cards: A/B (8RX4)
General Population Requirements
DIMM Mixing Rules
• Please populate all memory modules with DDR4 DIMMs only.
• X4 and X8 DIMMs can be mixed in the same channel.
• Mixing of LRDIMMs and RDIMMs is not allowed in the same channel, across different channels, and across different sockets.
• Mixing of non-3DS and 3DS LRDIMM is not allowed in the same channel, across different channels, and across different sockets.
Mixing of DIMM Types within a Channel
DIMM Types RDIMM LRDIMM 3DS LRDIMM
RDIMM Allowed Not Allowed Not Allowed
LRDIMM Not Allowed Allowed Not Allowed
3DS LRDIMM Not Allowed Not Allowed Allowed
DDR4 Memory Support (for 1-Slot Per-Channel Confi guration)
Type
Ranks
Per
DIMM
and Data
Width
DIMM Capacity
(GB)
Speed (MT/s); Voltage (V); Slots per Channel (SPC) and DIMMs per Channel (DPC)
1 Slot per Channel
1DPC (1-DIMM per Channel)
4 Gb 8 Gb 1.2 V
RDIMM SRx4 8 GB 16 GB 2666
RDIMM SRx8 4 GB 8 GB 2666
RDIMM DRx8 8 GB 16 GB 2666
RDIMM DRx4 16 GB 32 GB 2666
RDIMM 3Ds QRX4 N/A 2H-64GB 2666
RDIMM 3Ds 8RX4 N/A 4H-128GB 2666
LRDIMM QRx4 32 GB 64 GB 2666
LRDIMM 3Ds
QRX4 N/A 2H-64GB 2666
8Rx4 N/A 4H-128 GB 2666
DDR4 Memory Support (for 2-Slot Per-Channel Confi guration)
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
RDIMM 3Ds 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