DRAM DIMMs installation order for Intel® Xeon® CPU Max processor
This section contains information of how to install DRAM DIMMs properly when the system is installed with Intel® Xeon® CPU Max processors.
Intel® Xeon® CPU Max operating systems support
Intel® Xeon® CPU Max requires specific version of supported operating systems. Make sure the operating system in the server is updated to designated version for proper Intel® Xeon® CPU Max implementation. For OS deployment instructions, see Deploy the operating system.
| Operating system | version |
|---|---|
| RHEL | 8.6 |
| SLES | 15 SP4 |
Cache mode memory population sequence
An Intel® Xeon® CPU Max processor contains 64 GB High Bandwidth Memory (HBM). DRAM memory to HBM ratio must be in 2:1 and up to 64:1 ratio for each processor in a system.
When SD650-I V3 is installed with Intel® Xeon® CPU Max processor and DRAM DIMMs, it follows the Cache mode, meaning the system views DRAM DIMMs as memory and HBM as cache for DRAM DIMMs.
SD650-I V3 supports fully populated processors only (two processors per node).
Mixing DIMMs with different capacity is not allowed. All DIMMs installed must be identical.
Cache mode can be set up in UEFI.
| Processor 1 | Processor 2 | |||||||||||||||
| iMC | iMC1 | iMC0 | iMC2 | iMC3 | iMC3 | iMC2 | iMC0 | iMC1 | ||||||||
| Memory channel | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |
| DIMM slot number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
8 DIMMs Supports 64 GB and 128 GB DIMM | F | D | F | D | D | F | D | F | F | D | F | D | D | F | D | F |
16 DIMMs Supports 32GB, 64GB, and 128GB DIMM | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D | D |
SD650-I V3 supports fully populated processors only (two processors per node).
Mixing DIMMs with different capacity is not allowed. All DIMMs installed must be identical.
Memory modes can be set up in UEFI