KSM56R46BD4PMI-96HMI Kingston 96GB DDR5 Memory Module

Kingston KSM56R46BD4PMI-96HMI 96GB Memory Kit

The Kingston KSM56R46BD4PMI-96HMI represents a pinnacle of performance and reliability in the realm of enterprise-grade server memory. This 96GB DDR5 Registered DIMM (RDIMM) is engineered to meet the rigorous demands of modern data centers, high-performance computing (HPC), and mission-critical server applications. Its design centers on delivering exceptional bandwidth, improved power efficiency, and rock-solid stability for next-generation server platforms.

DDR5 Generation Advancements

The transition to DDR5 is marked by several key technological improvements. Notably, the power management function has been migrated from the motherboard to the memory module itself with the adoption of an integrated Power Management IC (PMIC). This allows for more granular voltage control, improved signal integrity, and enhanced power delivery efficiency, which is crucial for dense server configurations.

On-DIMM Power Management IC (PMIC)

The PMIC on the KSM56R46BD4PMI-96HMI ensures cleaner, more stable power to the DRAM components, reducing noise and improving overall reliability. This is particularly important for maintaining data integrity in 24/7 operational environments where even minor voltage fluctuations can lead to errors.

Registered DIMM (RDIMM) Topology

This module utilizes a Registered (or Buffered) design. An RDIMM incorporates a register, or buffer, on the module that sits between the server's memory controller and the DRAM chips. This register buffers the command and address signals, reducing the electrical load on the memory controller.

Benefits of RDIMM in Enterprise Servers

The primary benefit of this architecture is the ability to support significantly higher memory capacities per channel and populate more modules per system without overburdening the memory controller. This makes the 96GB KSM56R46BD4PMI-96HMI ideal for building out large, multi-terabyte memory configurations essential for virtualization, in-memory databases, and large-scale data analytics.

Detailed Key Specifications and Performance

The Kingston KSM56R46BD4PMI-96HMI is defined by a precise set of technical parameters that dictate its compatibility and performance profile. Understanding these specifications is key to proper system integration and optimal deployment.

Memory Capacity and Density

This module features a substantial capacity of 96 gigabytes (GB). This high-density design is achieved through the use of advanced DRAM chips. Higher-capacity modules like this one allow server administrators to maximize the total memory footprint within a limited number of DIMM slots, reducing hardware costs, power consumption, and complexity in the rack.

Speed and Data Rate: PC5-44800

The module is rated at a data transfer rate of PC5-44800. This industry designation indicates a peak transfer rate of 44800 MB/s per module. In terms of speed, this correlates to 5600 megatransfers per second (MT/s). This high bandwidth is critical for accelerating data-intensive workloads, reducing processing bottlenecks, and improving overall server throughput for CPU-bound applications.

Impact on Bandwidth-Sensitive Workloads

Applications such as scientific simulations, financial modeling, and real-time data processing benefit directly from the increased memory bandwidth provided by DDR5-5600 speeds. It enables faster data movement between the CPU and memory, keeping processors fed with data and minimizing idle cycles.

Physical Form Factor: 288-Pin DIMM

The module utilizes a 288-pin Dual In-Line Memory Module (DIMM) interface. This physical and electrical interface is standard for DDR5 memory and is not compatible with previous-generation DDR4 (284-pin) or DDR3 (240-pin) sockets. The pin layout and notch key position are specifically designed for DDR5 server motherboards.

Latency Timings

While the primary timing focus for server memory is on stability and capacity, latency remains a component of performance. The specific Column Address Strobe (CAS) latency and other subtimings for this module are optimized by Kingston to ensure a balance between high-speed operation and reliable operation within JEDEC specifications for server environments.

Compatibility and Intended Server Platforms

The Kingston KSM56R46BD4PMI-96HMI is designed for integration into next-generation enterprise servers. Its compatibility is tied to specific CPU and chipset platforms that support the DDR5 RDIMM standard.

Supported Processor Architectures

This memory module is engineered for compatibility with servers powered by the latest Intel Xeon Scalable Processors (code-named Sapphire Rapids, Emerald Rapids, and beyond) and AMD EPYC 9004 Series (code-named Genoa) and newer processors. These platforms feature memory controllers specifically designed to leverage DDR5's speed, capacity, and efficiency features.

Importance of Platform Memory Controllers

The integrated memory controller within the server CPU must explicitly support DDR5 technology and the RDIMM form factor. The platform's maximum supported speed (e.g., 5600 MT/s, 5200 MT/s) will also determine the operational frequency of the installed modules, as systems often run all memory at the speed of the slowest populated DIMM.

Error Correction and Data Integrity

As a server-grade RDIMM, this module supports Error-Correction Code (ECC). ECC is a critical feature for data integrity in enterprise systems. It can detect and correct the most common types of internal data corruption (single-bit errors) and detect multi-bit errors, preventing silent data corruption and potential system crashes.

How ECC Protects Server Data

ECC works by adding extra bits (e.g., 8 bits for a 64-bit word) to the stored data. These bits are used to encode the data so that errors can be identified and corrected on-the-fly by the memory controller, ensuring the data read from memory is identical to the data written, which is non-negotiable for financial, healthcare, and scientific computing.

Application Scenarios and Use Cases

The combination of high capacity, high bandwidth, and robust reliability makes the Kingston KSM56R46BD4PMI-96HMI suited for a wide array of demanding server applications.

Virtualization and Cloud Infrastructure

In virtualized environments, physical memory is a key resource that is partitioned among multiple virtual machines (VMs). High-density 96GB modules allow for the creation of servers with massive total memory pools, enabling higher VM densities, supporting memory-hungry applications within VMs, and improving consolidation ratios, which directly lowers TCO.

In-Memory Databases (IMDB) and Analytics

Platforms like SAP HANA, Oracle Database In-Memory, and other real-time analytics engines store working data sets entirely in RAM. The speed of DDR5-5600 and the large 96GB capacity per module significantly reduce query times and accelerate transaction processing, enabling real-time business intelligence and faster decision-making.

High-Performance Computing (HPC)

Clusters used for computational fluid dynamics, genomic sequencing, and 3D rendering require immense and fast memory to handle complex simulations and datasets. The Kingston KSM56R46BD4PMI-96HMI provides the necessary performance and capacity to keep compute nodes working efficiently, reducing time-to-solution for complex problems.