General

Engineer's Note

The M393B1G70BH0-CK0Q8 is a server-grade DDR3-1600 Registered DIMM with ECC, purpose-built for virtualization hosts and memory-intensive databases where data integrity is non-negotiable. Its single-rank x4 organization and 1.5V registered signaling deliver lower electrical loading on the memory bus, enabling stable multi-DIMM configurations and reliable operation in dense server environments.

Technical Specs & Insights

1. ECC error correction continuously detects and fixes single-bit memory faults, preserving data integrity in financial trading or database systems where silent corruption is unacceptable.
2. Registered signal type buffers clock and command lines to maintain stable signal integrity across fully loaded memory channels, enabling reliable operation in high-density virtualization platforms.
3. Single Rank x4 organization uses narrower x4 DRAM chips to improve resilience against whole-chip failures, directly contributing to higher uptime in mission-critical enterprise servers.
4. The 1600MHz clock rate provides 12.8 GB/s bandwidth per channel, sustaining smooth concurrent throughput for live migration and memory-intensive analytics workloads.
5. An 8GB capacity per RDIMM offers a practical building block for scale-out infrastructure, letting operators populate multiple slots to hit optimal memory-to-core ratios under constrained budgets.

Why These Specs Matter

In the data center, where every millisecond of latency can cascade into financial loss, the Samsung M393B1G70BH0-CK0Q8 RDIMM isn't just memory—it’s a reliability contract. This module’s ECC technology silently corrects single-bit errors caused by cosmic radiation or electrical noise, which in a dense virtualization cluster running dozens of VMs means the difference between a corrupted in-memory database transaction and absolute data integrity for your financial records. Its registered architecture buffers command and address signals, taking the electrical load off the CPU’s memory controller. When you populate a dual-socket server with 384 GB for an in-memory analytics engine like SAP HANA, that signal stability prevents intermittent boot failures and ensures all DIMMs are recognized under full thermal load, directly preserving uptime SLAs. Operating at DDR3-1600 with a single-rank x4 organization, the module strikes a critical balance: it delivers enough bandwidth to feed multiple virtual machines without the rank-switching penalties that throttle random access in database workloads. For a Redis or Memcached tier serving millions of keys per second, this translates to predictable, low-latency responses rather than timeout storms during peak traffic. The industry-standard 1.5V power draw helps keep thermal density in check across blade chassis, safeguarding that reliability isn’t sacrificed on the altar of energy costs. This isn’t generic memory; it’s engineered governance over your data’s truth.

Endurance & Reliability

General Virtualization
For a typical hypervisor hosting mixed workloads, population rules for registered DDR3 are critical to maintain performance and stability. Install modules in matched sets of three or six per memory channel (balanced triple-channel configuration on legacy platforms) to ensure interleaving and optimal throughput; a common build uses six 8GB RDIMMs for 48GB total, leaving room for scale. Avoid mixing ranks or speeds, and always populate channels identically to prevent NUMA latency surprises.

In-Memory Database
Memory-resident datasets demand maximum capacity and fault tolerance. Configure all channels with identical dual-rank or quad-rank modules if available, but this 8GB single-rank x4 RDIMM can be deployed in full population—for instance, 18 or 24 modules across multi-socket boards to reach 144–192GB. ECC is mandatory; pair with sparing and mirroring modes in the BIOS to guard against uncorrectable errors, and ensure near-line speed by keeping CAS latency uniformity (CL11) across all sticks.

High Performance Computing (HPC)
HPC nodes favor bandwidth over raw capacity. Use the maximum number of channels per socket—typically three or four depending on the generation—with a single 8GB RDIMM per channel to achieve peak memory bandwidth. A lean configuration of six modules (48GB) per dual-socket node reduces power draw and heat while sustaining high-speed 1600MHz transfers, and registered ECC preserves result integrity for long-running parallel jobs.

Verified Compatibility

Server-grade, rigorously tested compatible: Dell PowerEdge R720, HP ProLiant DL380p Gen8, Lenovo System x3650 M4, and more.

FAQ