Hynix HMCT14MEERA 256GB DDR5 4800MT/s PC5-4800B 8Rx4 ECC Reg Memory Module

Description

The SK Hynix HMCT14MEERA is a high-density, enterprise-grade DDR5 memory module designed for next-generation data centers and high-performance computing (HPC) environments. It utilizes 3DS (Three-Dimensional Stacking) technology to achieve its massive 256GB capacity on a single DIMM.

Technical Specifications

Core Technologies and Benefits

Advanced 3DS Stacking

The “8Rx4” designation indicates an octal-rank configuration. Because fitting this many physical chips on a standard DIMM is impossible, Hynix uses Through-Silicon Via (TSV) technology to stack DRAM dies vertically. This allows for extreme density without increasing the physical footprint of the module.

On-DIMM Power Management (PMIC)

Unlike DDR4, which relies on the motherboard for power regulation, this DDR5 module features an onboard Power Management Integrated Circuit (PMIC). This ensures:

• More granular power control.

• Improved signal integrity.

• Reduced power noise, which is critical for high-capacity 256GB modules.

Enhanced Reliability and Efficiency

• ECC (Error Correction Code): Essential for servers, it detects and corrects single-bit errors and detects multi-bit errors to prevent system crashes and data corruption.

• Dual 32-bit Sub-channels: DDR5 architecture splits the 64-bit data bus into two independent 32-bit sub-channels, significantly improving the efficiency of data access for multi-core processors.

• Decision Feedback Equalization (DFE): This technology eliminates inter-symbol interference, allowing for stable high-speed operation at 4800 MT/s.

Compatibility Note

The HMCT14MEERA is a Registered DIMM (RDIMM). It is strictly for use in server platforms and professional workstations that support DDR5 ECC Registered memory, such as:

• Intel: Xeon Scalable 4th Gen (Sapphire Rapids) and 5th Gen (Emerald Rapids).

• AMD: EPYC 9004 Series (Genoa/Bergamo).

This module will not work in consumer desktops (Intel Core i9 or AMD Ryzen) as they require Unbuffered (UDIMM) memory.