Supermicro SuperServer SYS-421GE-TNRT - Memory

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Chapter 3: Maintenance and Component Installation
3.5 Memory
Memory Support
This motherboard supports up to 8TB 3DS RDIMM/RDIMM DDR5 (288-pin) ECC memory
with speeds up to 4800MT/s (1DPC) / 4400MT/s (2DPC) in 32 DIMM slots.
Note: Memory speed and capacity support depends on the processors used in the
system.
DDR5 Memory Support for 4th Gen Intel Xeon Scalable Processors
Key Parameters for DIMM Congurations
Parameters Possible Values
Number of Channels per Socket 1, 2, 4, 6, 8
Number of DIMMs per Channel 1DPC (1 DIMM Per Channel) or 2DPC (2 DIMMs Per Channel)
DIMM Type RDIMM and 3DS RDIMM
DIMM Construction non-3DS RDIMM Raw Cards: A (2Rx4), C (1Rx4), D (1Rx8), E (2Rx8)
3DS RDIMM Raw Cards: A (4Rx4, 8Rx4)
9x4 RDIMM Raw Cards: B (2Rx4), F (1Rx4)
DDR5 Memory Support for the 4th Gen Intel Xeon Scalable Processors
Type
Ranks Per DIMM
& Data Width
(Stack)
DIMM Capacity (GB)
Speed (MT/s); Voltage (V);
DIMM Per Channel (DPC)
1DPC (Note) 2DPC
16GB 1.1V
RDIMM
SRx8 (RC D) 16GB
4800 4400
SRx4 (RC C) 32GB
SRx4 (RC F) 9x4 32GB
DRx8 (RC E) 32GB
DRx4 (RC A)) 64GB
DRx4 (RC B) 9x4 64GB
RDIMM 3DS (4R/8R) x4 (RC A)
2H-128GB
4H-256GB
LRDIMM/LRDIMM-3DS N/A N/A Not Supported Not Supported
Note: 1DPC (1 DIMM Per Memory Channel) applies to 1 SPC (Sockets Per Channel)
or 2 SPC implementation.