Information on memory speed variation with multiple (Dual In-line Memory Module) slots in use
Will the memory speed scale down when installing more DIMMs on a motherboard with Intel® Xeon® Scalable Processor?
As long as both the processor and the motherboard support the maximum memory speed of the populated RAM modules, the memory working frequency will not be downscaled.
If the DIMM maximum speed is greater than the supported memory speed of the motherboard or processor, DIMM will operate at a lower speed, that is, the maximum speed that the motherboard and processor can support.
Using more memory slots at once does not lead to downscaling the operating frequency.
| Note | RAM modules of different* speeds are not advisable to use on the same motherboard since the such configuration is not supported, which can lead to unpredictable system behavior or damage. |
The supported memory specifications for Intel® Xeon® Scalable Processors and Intel® Server Products can be found on Intel® Product Specifications - ARK by typing the product model in the Search Specification box located on the top-right. The supported Memory Types for the product are listed in each Configuration Guide.
If the motherboard is produced by an Original Equipment Manufacturer (OEM), contact the motherboard manufacturer for more information on the supported memory specifications.