General

Engineer's Note

This VLP RDIMM targets space-constrained 1U rack servers and blade enclosures, where its very low-profile form factor enables dense memory population in high-density virtualization clusters and in-memory database appliances. The registered architecture with ECC ensures deterministic signal integrity and robust data corruption prevention under heavy load, while the single-rank x4 organization delivers elevated bandwidth efficiency for sustained transactional throughput.

Technical Specs & Insights

1. ECC error correction silently detects and fixes single-bit data corruption, preserving transaction accuracy for financial and database workloads in always-on server environments.
2. Registered buffering isolates the command/address bus from chip loading, allowing large memory populations that keep hypervisor memory pools stable under heavy multi-tenant consolidation.
3. VLP RDIMM form factor reduces the module height to improve airflow across densely packed rack servers, helping lower fan power and sustaining clock speeds during sustained computation.
4. 8 GB capacity per module provides a cost-effective building block for legacy server memory upgrades, letting IT teams extend virtual machine density without oversubscribing the host’s memory budget.
5. DDR3-1600 data rate supplies 12.8 GB/s peak bandwidth per channel, ensuring predictable throughput for aging enterprise applications that still drive daily business operations.

Why These Specs Matter

The Samsung M392B1G70BH0-CK0 is a server-grade DDR3 VLP RDIMM, engineered for environments where data integrity and density are paramount. Its four critical features—ECC, Registered buffering, Very Low Profile form factor, and single-rank x4 architecture—solve genuine operational headaches. In a virtualized cluster with dozens of VMs, ECC detects and corrects bit flips caused by cosmic radiation, preventing silent corruption that could crash entire guest fleets. Registered buffering stabilizes electrical loads when fully populating a 24-slot server, enabling 192GB of reliable memory without POST failures. The VLP design, standing just 18.7mm, preserves airflow in 1U rack nodes, lowering fan speeds and energy costs while keeping thermals in check. For in-memory databases like Redis, the single-rank x4 layout coupled with 1600MHz clocks delivers consistent low-latency throughput under millions of queries per second. For IT operators, this means hardened uptime, cooler denser racks, and headroom to expand memory-bound applications without rearchitecting hardware.

Endurance & Reliability

Server Memory Identified: The M392B1G70BH0-CK0 is an 8GB DDR3-1600 Registered ECC VLP RDIMM. Optimize capacity planning for legacy server platforms with these typical workloads.

General Virtualization
In virtualized environments, match total RAM to the sum of guest VM allocations plus a hypervisor overhead of 1–2 GB per host. With 8GB RDIMMs, populate six modules per channel across dual-socket boards to reach common 96–192 GB configurations, ensuring balanced NUMA access for moderate VM density.

In-Memory Database
In-memory databases demand minimal latency and absolute data integrity, making ECC mandatory. Deploy fully populated memory channels using single-rank 8GB DIMMs to maintain high frequency (1600 MT/s) and maximize bandwidth. Plan for 256 GB or more across all channels to keep entire datasets resident, and always leave one spare rank for future scale-out or fail-over.

High-Performance Computing
HPC clusters benefit from maximum channel utilization per node. Install identical 8GB RDIMMs in sets of four or eight per CPU to enable quad-channel or dual-channel interleaving and sustain peak throughput. Target 64–128 GB per node for memory-per-core ratios around 2–4 GB, tuning total capacity to avoid swapping during large MPI job runs.

Verified Compatibility

This server module is rigorously tested, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, and similar DDR3 registered systems.

FAQ