General

Engineer's Note

Designed for enterprise-class server environments, this Samsung M386B4G70BM0-CK00 module delivers 32GB of DDR3-1600 capacity in a Registered RDIMM form factor with ECC protection, making it ideal for memory-intensive workloads such as virtualization, in-memory databases, and high-availability computing. Its quad-rank x4 organization and registered signal type ensure robust signal integrity and high-density scalability in multi-DIMM configurations, while the CL11 latency balances responsive access with stable operation under sustained load.

Technical Specs & Insights

1. 32 GB capacity per module allows dense memory configurations that keep hypervisors fully stocked with resources, so dozens of virtual machines run simultaneously without triggering performance-sapping disk swapping.
2. ECC protection continuously detects and corrects single-bit errors, guarding against silent data corruption that could otherwise crash critical financial transactions or corrupt long-running analytics jobs.
3. Registered signal architecture buffers address and command lines, preserving signal integrity when all 24 DIMM slots are populated and ensuring predictable boot behavior in large-scale rack deployments.
4. Quad Rank x4 organization packs more addressable DRAM into the same physical footprint, making it practical to provision multi-terabyte in-memory datasets for heavy database acceleration without sacrificing slot density.
5. 1600 MHz throughput feeds each memory channel with enough bandwidth to keep pace with multi-core server CPUs, reducing stalls during read-intensive workloads like real-time query engines and high-concurrency web serving.

Why These Specs Matter

The Samsung M386B4G70BM0-CK00 is a 32GB DDR3-1600 Registered ECC RDIMM purpose-built for server platforms where unplanned downtime directly translates to revenue loss. Its four defining characteristics—ECC error correction, registered buffering, quad-rank x4 architecture, and dense 32GB capacity—solve critical pain points in virtualization clusters and in-memory databases. ECC actively corrects single-bit errors and detects multi-bit corruption, preventing silent data flips that could crash an entire virtual machine farm or poison a financial transaction. The registered command bus buffers clock and address signals, stabilizing multi-DIMM channels so you can populate all slots on a dual-processor system and confidently provision 768GB of reliable memory for dozens of VMs. The quad-rank x4 configuration packs four internal ranks onto a single module, maximizing per-channel capacity without sacrificing signal integrity—a game-changer for memory-resident databases like SAP HANA or Redis, where a single undetected bit error can return an incorrect analytics result. At 1.5V with CL11 timing, this module delivers the predictable latency and power efficiency your 24/7 operations demand, turning raw specifications into measurable business continuity.

Endurance & Reliability

General Virtualization
A single 32GB RDIMM is a solid building block for moderate-density hosts. Deploy six or twelve identical modules in balanced three-channel or four-channel configurations to reach 192GB or 384GB per node, comfortably supporting 30–50 general-purpose VMs. Registered ECC ensures stability under mixed workloads and reduces memory errors in overcommitted environments.

In-Memory Database
Capacity and reliability are paramount for in-memory datasets. Populate all available channels with these quad-rank 32GB DIMMs to maximize capacity, often targeting 256GB–512GB per server for Redis or SAP HANA instances. The ECC and registered design protect data integrity during aggressive caching, while the x4 organization delivers strong chip-level error correction ideal for mission-critical transactions.

High-Performance Computing
Balance bandwidth and capacity by installing one DIMM per channel across all memory controllers — typically 8 or 12 modules for dual-socket nodes. The 1600MT/s speed and CL11 latency deliver consistent throughput for simulation and modeling codes. Quad-rank modules fill all ranks quickly, so ensure the platform supports this population; combining multiple 32GB RDIMMs lets you provision large memory pools without sacrificing NUMA-aware access patterns.

Verified Compatibility

Compatibility verified: rigorously tested for servers like Dell PowerEdge R720, HP ProLiant DL380p Gen8, and Lenovo ThinkServer RD630.

FAQ