Memory Speeds and Population
The 13th generation of Dell PowerEdge servers delivers high-level performance in memory subsystems with offerings that include up to 2400MT/s speed. Critical design and testing elements ensure that Dell server memory achieves desired speeds.
The loading within a channel significantly affects memory speed. The following table illustrates maximum achievable speeds based on memory loads:
13th Generation memeory (EP, 2/3 DPC platforms)
4, 8, 16,
|RDIMM||1R/2R||4GB, 8GB, 16GB, and 32GB|| DDR4 (1.2V), |
|LRDIMM||4R||64GB||DDR3L (1.2V), |
The 13th generation of PowerEdge servers requires memory to be populated in a specific order to help ensure correct server utilization and optimization. Some basic population rules for Socket R systems, include:
- Dual in-line memory module (DIMMs) should be populated by largest capacity first.
- In advanced ECC mode, DIMMs must be populated in matched pairs (same capacity and ranking). Odd numbers of DIMMs are not supported in this mode.
- Optimized mode can support even or odd numbers of DIMMs.
- For mirroring configurations, each channel must be matched (same capacity and ranking).
- Rank sparring requires at least two DIMMs or one quad-ranked DIMM.
|Capacity||DIMM Rated Voltage,|
|13th Generation Memory (EX, 3DPC Platforms)|
*DPC means DIMMs per channel.
|Performance Mode (2:1)||Lockstep Mode (1:1)|
|1 DPC||2 DPC||3 DPC||1 DPC||2 DPC||3 DPC|
|RDIMM||2R||8GB, 16GB, 32GB||DDR4 (1.2V),|
|RDIMM||2R||16GB, 32GB||DDR4 (1.2V),|