Which memory module reduces electrical load for larger capacities?

• A. RDIMM buffers control signals for stability.
• B. LRDIMM reduces electrical load for larger capacities.
• C. NVRAM.
• D. BMC.

Answer: (B)

Memory channel electrical load matters when you scale memory capacity. To run larger amounts of memory on a single channel without signal integrity problems, you use modules that decouple the DRAMs from the memory controller. Load-Reduced DIMMs include buffers that absorb much of the switching and capacitive load, so the memory controller sees a much lighter load. This setup enables higher-density modules to be used on a channel while keeping performance and reliability solid. In other words, the buffers on these DIMMs reduce the electrical demand on the controller, making them the right choice for larger capacities.

As for the other options, a registered DIMM adds a register to stabilize signals but doesn’t reduce the load as effectively as load-reduced DIMMs. The remaining options aren’t memory modules designed to handle high-density load reduction.