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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 128 GB |
| Memory Technology | DDR5 |
| Product Voltage | 1.1 V |
| RAM Speed | 5600 MHz |
| RAM Standard | DDR5-5600/PC5-44800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | DIMM |
This 128GB DDR5-5600 Registered DIMM with ECC is purpose-built for enterprise server platforms handling memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics where data integrity is critical. Its registered signal architecture ensures stable multi-DIMM operation at 1.1V, while the dual-rank x4 configuration optimizes memory interleaving for higher sustained bandwidth and reduced latency under heavy load.
1. 128GB capacity enables high-density virtualization, allowing a single server to host significantly more VMs without sacrificing performance.
2. DDR5 technology doubles the burst length and bank groups, dramatically boosting in-memory database throughput under concurrent workloads.
3. 5600MT/s speed supplies massive memory bandwidth, accelerating real-time analytics and reducing latency in data-intensive applications.
4. ECC protection corrects single-bit errors and detects multi-bit faults, ensuring data integrity in mission-critical financial transactions.
5. Registered buffering stabilizes high-capacity configurations, allowing servers to scale to multi-terabyte memory footprints reliably.
As a server memory module, the M321RAJA0MB0-CWM is built for mission-critical enterprise workloads where downtime is not an option. In a virtualized cluster running dozens of VMs on a single node, instability is the enemy. The registered signal type buffers command and address lines, dramatically reducing electrical loading on the memory controller. This allows the system to support this module’s massive 128GB capacity without compromising signal integrity, so you can confidently consolidate more tenants and heavier services per server. Meanwhile, its ECC technology silently corrects single-bit errors and detects multi-bit faults, directly protecting your virtual machines from in-memory data corruption that could crash a transaction or poison a database—failures that often bring hidden weeks of forensic troubleshooting.
In an in-memory database like Redis or SAP HANA, throughput and latency define user experience. The dual-rank x4 organization interleaves access across internal banks, amplifying effective bandwidth well beyond a single-rank stick. Coupled with DDR5-5600 speeds, it feeds hungry analytics engines with rapid data streams, shrinking query response times during peak trading or real-time fraud detection. The 1.1V operating voltage further lowers thermals in dense multi-module configurations, preserving long-term reliability inside air-cooled racks. This is not just memory—it is an assurance that your virtualized infrastructure and data-intensive applications stay responsive, consistent, and safe from silent errors.
General Virtualization
With 128GB RDIMMs, a dual-socket server populated with 16 modules per CPU delivers 2TB per node, comfortably supporting 50+ moderate VMs. Start with one DIMM per channel (8 modules per socket) to balance capacity and memory bandwidth, then scale symmetrically for additional headroom without sacrificing NUMA locality.
In-Memory Database
Low-latency, large-capacity datasets demand populating all available channels while keeping ranks per channel low to reduce load on the memory controller. Deploy these 128GB dual-rank modules in a 1 DIMM per channel (1DPC) configuration—often 8 or 12 modules per socket—to achieve both multi-terabyte capacity and the highest achievable 5600 MT/s speed, critical for Redis or SAP HANA.
High-Performance Computing
Memory bandwidth is paramount for HPC. Use eight of these DDR5-5600 modules per socket (1DPC) to maximize channel count and maintain rated speed. For capacity-bound MPI workloads, scaling to 16 modules per socket is acceptable, but expect a speed drop to 4400 MT/s; validate if the extra capacity offsets the bandwidth trade-off for your simulation code.
Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.
Q: Can I mix this M321RAJA0MB0-CWM with other memory modules of different brands or speeds?
A: Mixing is not recommended for registered ECC server memory. Mismatched ranks or speeds can cause instability and signal integrity issues. Uniform modules ensure validated RAS and reliable 24/7 operation in mission-critical environments.
Q: Is this memory compatible with my server system?
A: It is compatible with DDR5-based Intel Xeon Scalable and AMD EPYC 9004 series platforms that support 288-pin registered ECC DIMMs. Please verify your motherboard's qualified vendor list for this 128GB DDR5-5600 part.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs in balanced channels per memory controller, typically filling white slots first. Follow your server manual's specific population sequence. This dual-rank x4 module benefits from symmetric configurations to maximize interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. As a registered server DIMM operating at JEDEC-standard DDR5-5600, it does not support XMP or overclocking. It delivers fixed 1.1V, validated enterprise-grade performance with no user-configurable speed profiles.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Enterprise server memory exhibits very low annualized failure rates under proper thermal conditions. Our rigorous testing ensures high reliability, typically well below 0.5% AFR in spec-compliant environments.