Independent memory mode installation order
In independent memory mode, memory channels can be populated with DIMMs in any order and you can populate all channels for each processor in any order with no matching requirements. Independent memory mode provides the highest level of memory performance, but lacks failover protection. The DIMM installation order for independent memory mode varies based on the number of processors and memory modules installed in the server.
Individual memory channels can run at different DIMM timings, but all channels must run at the same interface frequency.
Populate memory channel 0 first.
In each memory channel, populate slot 0 first.
Memory channel 1 is empty or identically populated as memory channel 0.
Memory channel 2 is empty or identically populated as memory channel 1.
If a memory channel has two DIMMs, populate the DIMM with a higher number of ranks in slot 0.
Mixing DIMMs with different capacity is not allowed. All DIMMs installed must be identical.
Independent mode population sequence
SD650 V3 supports fully populated processors only (two processors per node).
| 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 |
| 16 DIMMS | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM | DIMM |
Sub NUMA Clustering 2 (SNC2) is supported and can be enabled in UEFI.
Software Guard Extensions (SGX) is supported. See Enable Software Guard Extensions (SGX) to enable this feature.