Supported Memory for Intel® Server D50DNP Family
The Intel® Server Board D50DNP1SB supports DDR5 SDRAM RDIMMs.
DDR5 SDRAM DIMM Support
The following figure shows a DDR5 SDRAM DIMM.
The Intel® Server Board D50DNP1SB supports DDR5 SDRAM DIMMs with the following features:
- Registered DDR5 DIMM (standard RDIMM, 3DS-RDIMM, and 9x4 RDIMM)
Note 3DS = three-dimensional stacking.
- All DDR5 RDIMMs must support ECC
- RDIMMs with thermal sensor on-DIMM (TSOD)
- RDIMM speeds of up to 4800 MT/s (for 1 DPC)
- RDIMM capacities of 8 GB, 16 GB, 32 GB, 64 GB, and 128 GB
- RDIMMs organized as single rank (SR), dual rank (DR)
- 3DS-RDIMM organized as quadruple rank (QR), or octuple rank (OR)
The following tables list the DDR5 DIMM support guidelines.
| Type | Ranks per DIMM | DIMM Capacity (GB) (16 Gb DDR5 Density) | Maximum Speed (MT/s) at 1.1 V (1 DPC) |
| RDIMM | SR x8 | 16 | 4800 |
| SR x4 | 32 | ||
| 9x4 SR x4 | 32 | ||
| DR x8 | 32 | ||
| DR x4 | 64 | ||
| 9x4 DR x4 | 64 | ||
| RDIMM-3DS | QR/OR x4 | 128 (2H) |
| Note | SR = single rank, DR = dual rank, QR = quadruple rank, OR = octuple rank, H = stack height, DPC = DIMMs per channel |
Maximum Supported DDR5 SDRAM DIMM Speed by Processor Shelves
| Processor Family | Maximum DIMM Speed (MT/s) by processor Shelf | |||
| Platinum 84xx Processors | Gold 64xx | Gold 54xx | ||
| 4th Gen Intel® Xeon® Scalable processors | 4800 1DPC | 4400 1DPC | ||
Memory Subsystem Architecture
The Intel® Server Board D50DNP1SB includes eight memory slots per processor as shown in the following figure.
Intel® Server Board D50DNP1SB Memory Slot Layout
As shown in the following figure, each processor has four integrated memory controllers (IMCs), each supporting two memory channels. Memory channels are identified A–H. Each memory channel supports one
memory slot.
Memory Slot Connectivity for the Intel® Server Board D50DNP1SB