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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 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 | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR5-5600 Registered DIMM with ECC is purpose-built for enterprise servers and workstations, ensuring data integrity in memory-intensive workloads like virtualization, in-memory databases, and mission-critical applications. Its registered signal type and single-rank x8 configuration enhance signal stability and reduce electrical loading on the memory bus, enabling reliable operation at 1.1V across densely populated server boards.
1. ECC protection detects and corrects single-bit memory errors in real time, preserving data integrity for mission‑critical enterprise workloads and minimizing costly system downtime.
2. Registered signal topology decouples the memory controller from the DRAM loads, enabling large‑capacity configurations and rock‑solid signal integrity in densely populated server racks.
3. The PC5‑44800 bandwidth unlocks up to 44.8 GB/s throughput per module, accelerating in‑memory databases and virtualized environments where fast data access directly translates to business responsiveness.
4. A proven 16 GB capacity per stick balances density with cost‑efficiency, allowing IT architects to scale total memory without wasting budget on oversized modules for moderate consolidation scenarios.
5. Operating at just 1.1 V, this DDR5 module reduces thermal dissipation and power draw across fleets of servers, lowering data center operating expenses while preserving clock‑cycle stability under continuous load.
The M321R2GA3BB0-CWMQH is a 16GB DDR5-5600 Registered DIMM built explicitly for server environments where data integrity and scalable stability are non-negotiable. Its ECC engine silently corrects single-bit errors caused by electrical noise or cosmic radiation, a critical line of defense when a flipped bit inside a virtualization cluster could corrupt a live financial database without a single warning. The registered buffer re-drives command and address signals, letting you fully populate multi-channel platforms to scale in-memory databases like SAP HANA or dense VM hosts without signal degradation. Meanwhile, the single-rank x8 layout minimizes electrical loading on the memory bus, reducing access latency for responsive virtual desktops and allowing the DDR5-5600 bandwidth to keep data flowing smoothly under heavy consolidation. Operating at just 1.1V, it also reins in power consumption across a rack of servers. For your real-time analytics or a multi-tenant private cloud, this module means you can run every transaction and every guest with predictable performance and absolute data fidelity that your SLAs demand.
This 16GB DDR5-5600 registered ECC module is purpose‑built for server environments. Use the following capacity planning guidelines to match module count and configuration to your workload.
General Virtualization
Populate all memory channels with one single‑rank 16 GB RDIMM each — for an 8‑channel platform this delivers 128 GB at the full 5600 MT/s. If higher capacity is required, install a second identical DIMM per channel, but plan for a minor speed drop to 5200 MT/s. Allow 4–8 GB per typical VM to sustain comfortable consolidation ratios.
In‑Memory Database
Maximise capacity by fully populating each channel (e.g., two 16 GB DIMMs per channel for 256 GB total on 8 channels). Stick to identical single‑rank modules to avoid rank‑mixing penalties and maintain low latency. Configure the BIOS for maximum performance mode to keep the memory bus steady at 5600 MT/s, and pair with a high‑cache CPU for workloads like Redis or SAP HANA.
High‑Performance Computing (HPC)
Bandwidth is king — fit one 16 GB DIMM per channel across every available channel and leave the second slot empty. This preserves the peak 5600 MT/s speed and avoids frequency roll‑back. Aim for roughly 4–8 GB per core to feed parallel MPI or OpenMP jobs without oversubscribing memory bandwidth.
Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.
Q: Can I mix this M321R2GA3BB0-CWMQH with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not recommended for this registered ECC module. It may cause instability or force all DIMMs to the lowest common speed, compromising server reliability and performance.
Q: Is this memory compatible with my system?
A: This DDR5-5600 RDIMM is designed for servers using Intel Xeon Scalable (Sapphire Rapids) or AMD EPYC 9004 series processors. Verify platform support for registered ECC and 288-pin DDR5 slots.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server vendor's memory population guide. Typically, populate identical DIMMs per channel, starting with the furthest slot from the CPU, balancing across memory controllers for best bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No, this is an enterprise-grade registered ECC module operating strictly at JEDEC standard DDR5-5600 CL46. It does not support overclocking or XMP, prioritizing data integrity and uptime.
Q: What warranty and typical failure rate can I expect?
A: This product includes a one-year warranty. As a rigorously tested server-grade component, the annualized failure rate (AFR) is typically very low, well under 1% in controlled data center environments.