HMCG88MEBRA115N
SK Hynix DDR5 64GB RDIMM 4800MT/s ECC registered memory module for next-generation servers
Product Overview
Description
The HMCG88MEBRA115N is a high-capacity DDR5 RDIMM designed for next-generation enterprise servers and data centers. This 64GB module operates at 4800MT/s, delivering significantly higher bandwidth than DDR4 for memory-intensive workloads. The registered design supports high-density memory configurations in modern server platforms.
Featuring on-die ECC and advanced reliability features, this module provides exceptional data integrity for mission-critical applications. The DDR5 architecture includes improvements in power efficiency with 1.1V operation, reducing overall system power consumption. The module supports Intel Xeon Scalable and AMD EPYC platforms with DDR5 support.
With 50% higher bandwidth than comparable DDR4 modules, this DDR5 RDIMM enables better performance for virtualization, databases, and AI workloads. The 64GB capacity supports high-density server configurations, allowing up to 4TB per processor on modern platforms.
Product Series
HMCG
Primary Application
Next-generation enterprise servers
Key Features
- 64GB ultra-high capacity DDR5 memory
- 4800MT/s high-speed operation
- On-die ECC for enhanced reliability
- 1.1V low power consumption
- 50% higher bandwidth than DDR4
- Supports next-gen Intel and AMD platforms
Specifications
| Memory Type | DDR5 RDIMM |
|---|---|
| Capacity | 64GB |
| Speed | 4800MT/s (PC5-38400) |
| Voltage | 1.1V |
| Organization | 2Rx4 |
| ECC | On-die ECC |
| Package | 288-pin RDIMM |
| Operating Temperature | 0C to +85C |
Applications
Next-generation enterprise servers
Electronic system design
High-density data centers
Electronic system design
AI and machine learning platforms
Electronic system design
In-memory databases
Electronic system design
High-performance computing
Electronic system design
Cloud infrastructure
Electronic system design
FAE Expert Insights
"The HMCG88MEBRA115N is the cutting edge of server memory technology. I'm impressed by the performance gains this module delivers. The 4800MT/s speed provides noticeable improvements in memory-bound applications compared to DDR4. The 64GB capacity is perfect for high-density servers where memory capacity per slot is critical. I particularly like the on-die ECC feature which enhances reliability without system-level overhead. The power efficiency at 1.1V is excellent, helping reduce data center power consumption. For customers building next-generation servers, this DDR5 module is essential. The performance uplift is especially noticeable in virtualization and database workloads."
Next-generation DDR5 with exceptional capacity and bandwidth for modern data centers
— Sarah Johnson, BeiLuo
Frequently Asked Questions
What platforms support this DDR5 RDIMM?
The HMCG88MEBRA115N DDR5 RDIMM supports next-generation server platforms: 1) Intel Xeon Scalable 4th generation (Sapphire Rapids) and newer with DDR5 support, 2) AMD EPYC 9004 series (Genoa) and newer processors, 3) Compatible with DDR5-enabled server motherboards from major vendors, 4) Requires platforms specifically designed for DDR5 memory. DDR5 is not backward compatible with DDR4 platforms.
Verify your platform supports DDR5 before ordering. Contact FAE for DDR5 migration planning and platform recommendations.
How much performance improvement does DDR5 provide over DDR4?
DDR5 provides significant performance improvements over DDR4: 1) Bandwidth - DDR5 4800MT/s offers approximately 50% higher bandwidth than DDR4 3200MT/s, 2) Latency - comparable or slightly improved latency despite higher speed, 3) Real-world performance - 15-30% improvement in memory-intensive applications, 4) Power efficiency - 1.1V vs 1.2V reduces power consumption by approximately 10-15%, 5) Capacity - supports higher density enabling larger memory configurations.
Expect 15-30% performance improvement for memory-intensive workloads. DDR5 is essential for next-generation server designs.
What is on-die ECC and how does it differ from standard ECC?
DDR5 on-die ECC is different from traditional ECC: 1) On-die ECC - corrects errors within the DRAM chip itself before data leaves the die, 2) Standard ECC - uses extra DRAM chip to store error correction codes across 64-bit words, 3) Benefits - on-die ECC improves reliability without system-level ECC overhead, 4) Combined use - DDR5 RDIMMs include both on-die ECC and standard ECC for maximum protection, 5) Error coverage - on-die ECC handles single-bit errors within chips, standard ECC handles multi-bit errors across the interface. This dual-layer protection makes DDR5 ideal for mission-critical applications.
DDR5 provides enhanced reliability through on-die ECC combined with standard ECC. Ideal for critical server applications.
How do I migrate from DDR4 to DDR5 in my data center?
DDR5 migration requires platform refresh: 1) New processors required - DDR5 is not backward compatible with DDR4 platforms, 2) Intel platforms - 4th Gen Xeon Scalable (Sapphire Rapids) and newer support DDR5, 3) AMD platforms - EPYC 9004 series (Genoa) and newer support DDR5, 4) Server refresh - plan server replacement or new deployments for DDR5 adoption, 5) Performance validation - benchmark critical workloads on DDR5 platforms before migration. DDR5 provides 50% bandwidth improvement justifying the migration investment. Plan migration during normal hardware refresh cycles.
DDR5 requires new server platforms. Plan adoption during hardware refresh cycles for optimal ROI.
What thermal considerations apply to high-capacity DDR5 RDIMMs?
High-capacity DDR5 RDIMMs require thermal attention: 1) Power consumption - 64GB DDR5 RDIMM consumes approximately 5-7W under load, 2) Heat density - high capacity in standard form factor concentrates heat, 3) Server cooling - ensure adequate airflow through memory slots, 4) Temperature monitoring - use server management tools to monitor DIMM temperatures, 5) Throttling - DDR5 includes thermal throttling to prevent overheating, 6) Ambient temperature - maintain recommended data center temperatures (18-27C). Proper thermal management ensures reliable operation and maximum performance. Contact FAE for thermal design guidance.
Ensure adequate server cooling for high-capacity DDR5. Monitor temperatures and maintain recommended ambient conditions.