HMA84GR7AFR4N-VK Hynix 32GB Memory PC4-21300 DDR4 SDRAM

Hynix HMA84GR7AFR4N-VK 32GB Memory

The Hynix HMA84GR7AFR4N-VK DDR4 SDRAM is a high-performance memory module that offers an impressive capacity of 32GB. This level of capacity makes it an ideal choice for users who require a significant amount of memory for their computing needs.

Product Details

• Brand: Hynix
• Part Number: HMA84GR7AFR4N-VK
• Product Title: 32GB DDR4 SDRAM Memory Module

Technical Specifications

• Capacity: 32GB
• Memory Type: DDR4 SDRAM
• Module Quantity: Single 32GB Module
• Bus Speed: 2666MHz DDR4-21300/PC4-21300
• Data Integrity: ECC (Error-Correcting Code)
• Signal Processing: Registered
• CAS Latency: CL19
• Rank Configuration: 2Rx4

Physical Dimensions

• Form Factor: 288-pin RDIMM
• Dimensions (Shipping): 1.00" (Height) x 6.75" (Depth)
• Shipping Weight: 0.20 lbs

Compatibility

Supported Systems

• PowerEdge R640
• PowerEdge R740
• PowerEdge R940
• PowerEdge R740xd
• PowerEdge C6420
• Precision Workstation T7820
• Precision Workstation T7820 XL
• PowerEdge R440
• PowerEdge T640
• PowerEdge T440
• PowerEdge FC640
• PowerEdge M640
• PowerEdge M640 VRTX
• Precision Workstation R7920 XL
• Precision Workstation R7920
• Precision Workstation T7920 XL
• Precision Workstation T7920
• PowerEdge R540
• Precision Workstation T5820
• Precision Workstation T5820 XL
• PowerEdge C4140

Hynix 32GB Memory PC4-21300 Cl19 ECC Memory

Speed: 2666Mhz

The Hynix HMA84GR7AFR4N-VK DDR4 SDRAM offers a speed of 2666Mhz, providing users with a fast and efficient computing experience. The speed at which a memory module operates is crucial for overall system performance and responsiveness.

Pc Type: PC4-21300

The Hynix HMA84GR7AFR4N-VK DDR4 SDRAM is designed for use with PCs that support PC4-21300 memory modules. PC type refers to the specific compatibility requirements of a memory module with the motherboard and other components of a PC.

ECC

The Hynix HMA84GR7AFR4N-VK DDR4 SDRAM features ECC Registered technology, which stands for Error-Correcting Code. This technology plays a vital role in ensuring data integrity and system stability.

Stability

By detecting and correcting errors in real-time, ECC improves system stability. Memory errors can cause system crashes or unexpected behavior, leading to significant disruptions and potential data loss. With ECC enabled, the Hynix HMA84GR7AFR4N-VK Memory ensures that your system remains stable and reliable even in the presence of memory errors. This is particularly important for critical applications or servers that require continuous operation without interruptions.

Reliability

For server environments, where reliability and data integrity are of utmost importance, ECC-enabled memory is essential. Servers handle large amounts of critical data and require uninterrupted operation. The ECC feature provided by the Hynix HMA84GR7AFR4N-VK Memory ensures that servers can operate reliably and maintain data integrity, even in high-demand scenarios.

Registered (Buffered) Memory

Registered memory modules, or RDIMMs, incorporate a memory register (or buffer) between the system's memory controller and the DRAM chips. This register buffers the command and address signals, reducing the electrical load on the controller. This allows a system to support a significantly higher number of memory modules and greater total capacities—essential for servers with multiple CPU sockets and extensive memory banks. The trade-off is an additional clock cycle of latency, which is a minimal penalty for the immense gains in system scalability and stability.

Detailed Analysis of the Hynix HMA84GR7AFR4N-VK 32GB Module

This specific module is not just a generic memory stick; it is a precisely engineered component with specifications that define its role in a compatible server ecosystem.

The Role of PC4-21300 and 2666MHz Speed

The designation PC4-21300 refers to the module's peak theoretical bandwidth. Calculated as 2666 MT/s * 8 Bytes (64-bit data bus). 21,300 MB/s, this is the maximum data transfer rate under ideal conditions. In a server environment with multiple channels (e.g., quad-channel or octa-channel memory architectures), this bandwidth is multiplied, creating a massive pipeline for data flowing between memory and processors. A speed of 2666MHz strikes an excellent balance between performance, power efficiency, and compatibility for the generation of servers (primarily Intel Xeon Scalable and AMD EPYC 7001/7002 series) it was designed for. It provides a significant uplift over baseline 2133MHz DDR4, improving performance for memory-sensitive workloads like virtualization, in-memory databases (e.g., SAP HANA, Redis), and high-performance computing (HPC) simulations.

Technology: DDR4 SDRAM

The Hynix HMA84GR7AFR4N-VK Memory module utilizes DDR4 SDRAM technology, offering numerous benefits over its predecessor, DDR3. DDR4 SDRAM provides improved performance, higher capacities, and better power efficiency, making it an ideal choice for modern systems.

Compatibility

The Hynix HMA84GR7AFR4N-VK is not compatible with consumer-grade desktop motherboards. Its use is strictly in servers and high-end workstations that feature a memory controller designed for ECC and Registered memory. This module is ideally suited for servers based on Intel's Xeon Scalable processors (Purley platform and successors). This includes popular server boards from Super micro, Dell (PowerEdge series), HPE (ProLiant series), and Lenovo (Think System). It is crucial to populate memory in the correct slots (often starting with the farthest slots from the CPU) and in matching sets per CPU to enable multi-channel architectures for maximum bandwidth.