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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 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 |
| Column Access Strobe (CAS) | CL46 |
| Rank | Dual Rank |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Optimized for enterprise servers and demanding virtualization workloads, this 32GB DDR5-5600 Registered ECC RDIMM ensures data integrity and system stability through full error correction and registered signal buffering. Its dual-rank design maximizes memory bandwidth density, making it ideal for large-scale in-memory databases and multi-tenant cloud environments where consistent low-latency access is critical.
1. DDR5's expanded bank architecture and higher burst length deliver the memory throughput essential for real-time data analytics and large in-memory databases.
2. The elevated transfer rate significantly boosts bandwidth for memory-bound server tasks, keeping virtualized workloads responsive under heavy simultaneous access.
3. End-to-end error correction safeguards data integrity at every stage, preventing silent corruption in transaction-heavy ERP and financial systems where accuracy is mandatory.
4. Registered signal buffering maintains command and address bus stability, enabling dense memory populations that support massive virtualization footprints without degradation.
5. Dual rank interleaving optimizes channel utilization and reduces idle cycles, delivering predictable latency and improved performance for multi-tenant cloud instances.
Based on its Registered DIMM form factor and ECC support, the M321R4GA3PB0-CWM is unequivocally a server-grade DDR5 memory module, purpose-built for enterprise workloads where downtime is not an option. Its four defining characteristics directly address the critical pain points of data center operators. The integrated ECC engine relentlessly corrects single-bit memory errors, preventing silent data corruption in financial transaction databases or in-memory analytics platforms like SAP HANA—where even a single flipped bit can cascade into costly miscalculations. The registered clock driver buffers command and address signals, allowing a single server board to populate all 24 or 32 DIMM slots without signal degradation; this is vital for virtualization clusters running dozens of VMs, as it enables massive 1TB+ memory footprints with rock-solid stability. The dual-rank organization interleaves two sets of DRAM chips on the module, boosting sustained bandwidth and reducing access latency in a way that directly accelerates multi-tenant database queries and VDI session responsiveness. Finally, the DDR5-5600 speed with a 1.1V operating voltage delivers a substantial 5600MT/s throughput—up to 1.75x the bandwidth of a typical DDR4-3200 server—while maintaining thermal efficiency inside dense 1U rackmount nodes. This means your Redis cluster can serve millions more ops/sec, and your virtualized infrastructure can handle concurrent surges without memory bottlenecks, giving you deterministic performance where it matters most.
General Virtualization
For consolidated virtual machine hosts, install modules in balanced quantities across all memory channels to maximize throughput. Populate six or eight identical 32 GB DDR5-5600 RDIMMs (192–256 GB total) to comfortably support dozens of mixed-workload VMs, leaving headroom for memory overcommitment and vMotion operations.
In-Memory Database
Latency-sensitive in-memory databases like Redis or SAP HANA benefit from high capacity and Dual Rank DIMMs, which offer superior rank interleaving at the cost of slightly reduced clock frequency on heavily loaded buses. Equip all channels with 32 GB RDIMMs, starting at 256 GB per socket, and scale to 512 GB or more so the entire dataset resides in RAM, avoiding storage I/O bottlenecks.
High-Performance Computing
HPC workloads demand bandwidth above all else; therefore, install one 32 GB DIMM per channel first to achieve maximum memory speed, as fully populating ranks can force the memory controller to downclock. For CFD or weather modeling clusters, configure 8 modules (256 GB) across eight channels, and only add a second DIMM per channel if capacity is exhausted, accepting a speed trade-off for larger problem sets.
Rigorously tested server memory. Compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.
Q: Can I mix this M321R4GA3PB0-CWM with other memory modules of different brands or speeds?
A: Mixing different brands or speeds is not recommended in server environments. To ensure signal integrity and RAS, populate all channels with identical M321R4GA3PB0-CWM modules, matching rank and timings.
Q: Is this memory compatible with my system?
A: This DDR5-5600 RDIMM is compatible with server platforms supporting registered ECC memory, such as 4th Gen Intel Xeon Scalable and AMD EPYC 9004/8004 series. Please verify the specific system's memory QVL.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow the motherboard's population guide, typically filling all matching white or blue slots per memory channel first. For dual-rank modules, balance identical DIMMs symmetrically across CPU memory controllers to enable optimal interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No, this server-grade RDIMM does not support overclocking or XMP. It adheres to the JEDEC DDR5-5600 CL46 standard, prioritizing deterministic stability and error-free operation in enterprise deployments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. ECC RDIMMs demonstrate extremely low failure rates, typically below single-digit FIT, engineered for 24/7 mission-critical reliability in data center environments.