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Micron MTC20F2085S1RC64BD2R 32GB DDR5 DIMM 6400MT/s | Reliable ECC DDR5

MPN:MTC20F2085S1RC64BD2R By:Micron Warranty:1 year
US$1,636 - $1,773
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General

Product TypeMemory Module
Memory Capacity32 GB
Memory TechnologyDDR5
Product Voltage1.1 V
RAM Speed6400 MHz
RAM StandardDDR5-6400/PC5-51200
Error IdentifyingECC
Signal TypeRegistered
Column Access Strobe (CAS)CL52
RankDual Rank x8
Quantity of Pins288-pin
RAM GenreDIMM

Engineer's Note

Optimized for server-class platforms, this 32GB DDR5-6400 registered ECC DIMM delivers rock-solid data integrity for demanding virtualization and in-memory database workloads. The dual-rank x8 configuration enhances interleaving efficiency and bandwidth utilization, while the registered signal type ensures stable operation in high-density, multi-DIMM deployments.

Technical Specs & Insights

1. High-density module capacity supports greater virtualization density, allowing enterprise servers to host more simultaneous workloads without memory bottlenecks.
2. Ultra-fast DDR5 data rates dramatically boost memory bandwidth, which is vital for real-time analytics and large-scale in-memory computing.
3. On-die error correction delivers end-to-end data integrity, preventing costly silent data corruption in transactional databases and critical services.
4. The registered buffer architecture stabilizes signal integrity across large memory populations, enabling dependable scalability in multi-socket server deployments.
5. Dual-rank design leverages interleaving for sustained command throughput, efficiently handling concurrent access from high-core-count processors under heavy consolidation.

Why These Specs Matter

The MTC20F2085S1RC64BD2R is a 32GB DDR5-6400 registered DIMM with ECC, engineered specifically for enterprise servers where resilience and consistent performance are non-negotiable. In a dense virtualization cluster hosting dozens of guest machines, a single uncorrected memory bit-flip can silently corrupt a database page or crash an entire workload, leading to costly downtime and troubleshooting. ECC technology actively identifies and repairs such errors in real time, while the registered buffer isolates the memory controller from electrical loading, enabling you to populate all channels at full capacity without signal degradation. This allows you to assign larger memory footprints to each virtual machine with confidence. In an in-memory database environment like SAP HANA or Redis, the dual-rank x8 organization and 6400 MT/s bandwidth work together to interleave accesses, dramatically lowering latency under heavy concurrent queries. The tuned CL52 timing guarantees the deterministic response that transactional systems require, rather than chasing unattainable overclocking margins. For your infrastructure, these characteristics translate directly into maximized uptime, verified data integrity from ingestion to report, and the headroom to scale memory-intensive services without rebuilding the platform.

Endurance & Reliability

General Virtualization
Balance capacity and speed by installing one 32GB DDR5-6400 registered DIMM per memory channel (1DPC). A dual-socket server with 16 modules reaches 512GB, supporting dense VM consolidation without frequency drop. Use identical DIMMs for all populated slots to ensure stability.

In-Memory Database
Maximize capacity by filling every DIMM socket with these 32GB dual-rank ECC RDIMMs, even if 2DPC reduces the operating speed to 4800MT/s. A 2-socket system with 24 modules provides 768GB, keeping entire databases in RAM for ultra-low latency queries. ECC and registered features guarantee data integrity.

High-Performance Computing
Sustain 6400MT/s bandwidth by using one DIMM per channel across all memory controllers, exploiting dual-rank interleaving. A single-socket node with 8 DIMMs (256GB) delivers the high throughput needed for parallel simulations. The low 1.1V voltage also helps manage thermal loads in dense clusters.

Verified Compatibility

Rigorously tested server memory validated for Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and more.

FAQ

Q: Can I mix this MTC20F2085S1RC64BD2R with other memory modules of different brands or speeds?

A: Mixing this 32GB DDR5-6400 ECC Registered DIMM with modules of different brands or speeds is not recommended, as it may cause instability or disable ECC functionality in server environments.

Q: Is this memory compatible with my system?

A: It is designed for servers with DDR5 ECC Registered support, such as platforms based on Intel Xeon Scalable (Sapphire Rapids) or AMD EPYC 9004. Verify your motherboard's QVL for compatibility.

Q: What is the recommended DIMM population order for optimal performance?

A: Follow the server motherboard guidelines. Typically, populate equal capacity RDIMMs per channel, starting from the farthest slot from the CPU in each memory channel to maintain balanced configurations.

Q: Does this module support overclocking or XMP profiles?

A: No. As an ECC Registered server memory module built to JEDEC DDR5-6400 standards, it prioritizes data integrity and stability, and does not support overclocking or XMP profiles.

Q: What warranty and typical failure rate can I expect?

A: This Micron RDIMM comes with a one-year warranty. Enterprise-class memory typically exhibits a very low annualized failure rate (AFR) around 0.1%, ensuring high reliability for 24/7 operation.

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