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Samsung M393A1G43DB0-CPB20 8GB DDR4 RDIMM 2133MT/s | Reliable ECC

MPN:M393A1G43DB0-CPB20 By:Samsung Warranty:1 year
US$148 - $161
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General

ModelM393A1G43DB0-CPB20
Compliance StandardsEU RoHS,FCC
Product TypeMemory Module
Memory Capacity8 GB
Memory TechnologyDDR4
Product Voltage1.2V
RAM Speed2133MHz
RAM StandardDDR4-2133/PC4-17000
Error IdentifyingECC
Signal TypeRegistered
Column Access Strobe (CAS)CL15
RankDual Rank x8
Quantity of Pins288-pin
RAM GenreRDIMM

Engineer's Note

This RDIMM with ECC and registered signaling is purpose-built for server platforms, providing the data integrity and sustained stability essential for virtualization, in-memory databases, and mission-critical workloads. Its dual-rank x8 organization and registered buffer improve signal integrity and memory interleaving, enabling reliable system-level performance even under heavy load.

Technical Specs & Insights

1. ECC error correction silently detects and repairs single-bit memory faults, preserving data integrity for financial transactions and database operations in always-on server environments.
2. Registered signal buffering stabilizes electrical loads across high-density memory channels, enabling reliable population of numerous DIMMs for large-scale virtualization and in-memory analytics.
3. Dual Rank organization leverages rank interleaving to maximize command bus utilization, sustaining consistent throughput under heavy multi-tenant and containerized workloads.
4. DDR4 technology provides a generational leap in transfer efficiency and lower power draw, helping data centers shrink their energy footprint without sacrificing performance headroom.
5. This capacity tier represents a cost-optimized building block for memory provisioning in entry-level virtualization hosts or edge servers running lightweight, cache-intensive services.

Why These Specs Matter

When you are running a virtualized cluster or an in-memory database, memory errors are not just an inconvenience—they are a direct threat to business continuity. The Samsung M393A1G43DB0-CPB20 is engineered specifically for these mission-critical environments as a DDR4 Registered DIMM with ECC. Its error-correcting code (ECC) silently detects and corrects single-bit data corruption, which is essential when a random bit flip caused by cosmic radiation could crash a hypervisor hosting a dozen virtual machines or corrupt a financial transaction in a Redis cluster. The registered architecture buffers the command and address signals, stabilizing the heavy electrical loads on a server board that often packs 16 or 24 DIMMs per node. This means you can populate all channels for maximum capacity without sacrificing signal integrity or encountering boot failures. The dual-rank x8 design further boosts performance in database operations by interleaving memory banks, allowing the server to sustain higher bandwidth while you process concurrent queries. With its compliant 1.2V power envelope and 288-pin form factor, this module integrates seamlessly into your data center fleet, delivering the reliable, uninterrupted runtime your service-level agreements demand.

Endurance & Reliability

General Virtualization
For general virtualization hosts, this Samsung 8GB DDR4-2133 registered ECC module provides essential reliability. Populate a balanced configuration across all memory channels—typically six or eight identical DIMMs per CPU—to ensure consistent performance and avoid NUMA imbalances. A starting point of 64 GB (eight modules) comfortably supports a modest number of mixed-role virtual machines.

In-Memory Database
In-memory databases demand both capacity and data integrity, making ECC RDIMMs mandatory. Maximize capacity by fully populating each memory channel with these dual-rank x8 modules, which offer a favorable balance of rank interleaving and electrical loading. For production instances, plan for at least 128 GB (16 modules) across a dual-socket server to keep active datasets resident in RAM and minimize storage I/O.

High-Performance Computing (HPC)
HPC workloads benefit from high sustained memory bandwidth. Install identical M393A1G43DB0 modules in every available channel—one DIMM per channel (1DPC) where possible—to achieve peak DDR4-2133 speed without clock-down penalties. The registered, dual-rank design maximizes throughput per channel, and a minimum of 64 GB to 128 GB per node accommodates common simulation, modeling, and parallel processing datasets while maintaining balanced data paths.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R730, R630, HPE DL380 Gen9, and Lenovo x3650 M5.

FAQ

Q: Can I mix this M393A1G43DB0-CPB20 with other memory modules of different brands or speeds?

A: Mixing RDIMMs of different brands or speeds is not recommended. The system will default to the lowest speed and may face stability issues. For mission-critical servers, use identical modules to maintain ECC integrity and consistent performance.

Q: Is this memory compatible with my Intel Xeon E5-2600 v4 server platform?

A: Yes, this DDR4-2133 ECC Registered DIMM is compatible with Intel Xeon E5-2600 v4 platforms using the C610 chipset. Always confirm your server board's Qualified Vendor List (QVL) for guaranteed compatibility.

Q: What is the recommended DIMM population order for optimal performance on a dual-socket server board?

A: For dual-socket systems, populate identical DIMMs per channel starting with the slots farthest from the CPU. Follow the board's memory population guide—typically filling blue slots first for balanced interleaving and maximum bandwidth.

Q: Does this module support overclocking or XMP profiles?

A: No. As a Registered ECC server memory, this module adheres to strict JEDEC DDR4-2133 specifications. It does not support overclocking, XMP, or voltage adjustments, prioritizing data integrity and 24/7 operational stability.

Q: What warranty and typical failure rate can I expect with this Samsung server memory?

A: This module includes a 1-year warranty. Samsung server memory offers an Annualized Failure Rate (AFR) typically below 0.3% under specified conditions, ensuring excellent long-term reliability for enterprise workloads.

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