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| Compliance Standards | EU RoHS,FCC |
|---|---|
| Product Type | Memory Module |
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 2933 MHz |
| RAM Standard | DDR4-2933/PC4-23400 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL21 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Designed for dual-socket servers and high-density virtualization clusters, this 64GB DDR4-2933 RDIMM leverages Registered signaling and ECC to ensure data integrity under sustained memory loads. Its Quad Rank x4 organization maximizes capacity per channel while maintaining stable operation at 1.2V, making it ideal for in-memory databases and large-scale virtual machine deployments where reliability and density are critical.
1. 64GB module capacity dramatically raises the memory ceiling per server, allowing dense virtualization and large in-memory databases to run on fewer physical nodes.
2. 2933 MT/s data rate supplies the sustained bandwidth required for real-time analytics, high-frequency trading, and AI inference pipelines without throttling.
3. ECC protection continuously corrects single-bit errors, guarding against silent data corruption that could crash critical enterprise workloads or violate data integrity policies.
4. Registered signal buffering stabilizes command and address lines under heavy DIMM populations, making it possible to fill every channel without compromising uptime or signal quality.
5. Quad Rank x4 organization interleaves access across numerous internal banks, keeping server memory channels fully saturated and reducing latency under multi-tenant virtualization bursts.
The Samsung M393A8G40MB2-CVF is a 64GB DDR4-2933 RDIMM purpose-built for servers. Its four essential attributes — ECC, Registered buffering, Quad Rank x4, and dense 64GB capacity — directly solve real-world data center problems. In a VMware farm, a rogue bit flip can corrupt virtualized database transactions. ECC detects and corrects such errors automatically, safeguarding data integrity and maximizing uptime. The Registered clock driver stabilizes the command bus, allowing you to fully populate channels with large DIMMs without signal noise; this is what lets you scale a host to 1.5TB confidently. For in-memory databases like SAP HANA, the Quad Rank design interleaves access across multiple internal banks, maintaining high throughput under heavy parallel queries so response times stay low. Finally, the 64GB per module density means fewer DIMMs for the same footprint, reducing power and cooling demands while keeping slots free for future expansion.
The Samsung M393A8G40MB2-CVF is a server-class 64GB DDR4-2933 Registered ECC RDIMM (Quad Rank x4). Use the workload-specific guidance below for effective capacity planning.
General Virtualization
Install one DIMM per memory channel to maximize 2933 MT/s bandwidth while supporting dense VM consolidation. For a dual-socket server with eight channels per CPU, populate sixteen slots to deliver a balanced 1TB memory footprint that avoids bandwidth bottlenecks.
In-Memory Database
When maximum capacity is critical, fill two DIMMs per channel, but expect a speed reduction to 2666 or 2400 MT/s due to quad-rank loading. For latency-sensitive operations, stay at one 64GB RDIMM per channel to sustain full 2933 MT/s, providing 512GB of dedicated capacity per socket.
High-Performance Computing
Populate every memory channel uniformly with one identical 64GB DIMM to achieve symmetrical, top-speed 2933 MT/s operation. Avoid adding a second DIMM per channel or mixing different ranks, as any frequency downgrade directly impairs memory-bound parallel computing throughput.
Rigorously tested, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and Cisco UCS C220 M5.
Q: Can I mix this M393A8G40MB2-CVF with other memory modules of different brands or speeds?
A: We strongly advise against mixing this RDIMM with modules of different brands or speeds. For server memory, identical modules ensure signal integrity and prevent boot failures or memory errors in critical workloads.
Q: Is this memory compatible with my system?
A: This DDR4-2933 ECC Registered DIMM is designed for server platforms using Intel Xeon Scalable or AMD EPYC processors with 288-pin DDR4 slots. Verify your motherboard's memory QVL and support for 64GB quad-rank RDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard’s population guidelines. Typically, populate identical DIMMs symmetrically across memory channels, starting with the furthest slots from the CPU. Avoid mixing different ranks per channel with this quad-rank module.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server RDIMM with fixed timings (CL21) and voltage (1.2V). It does not support overclocking or XMP profiles, as stability and data integrity are paramount in enterprise environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. As a Samsung enterprise RDIMM, it undergoes stringent validation and delivers an extremely low annualized failure rate, ideal for always-on server environments where reliability is critical.