General

Engineer's Note

This DDR3-1600 registered ECC module is specifically engineered for enterprise servers, delivering critical data integrity for virtualization workloads and in-memory databases. Its dual-rank x4 configuration and registered signaling ensure stable signal integrity across densely populated DIMM banks, while ECC protection actively corrects single-bit errors to maintain 24/7 operational reliability.

Technical Specs & Insights

1. ECC error correction eliminates single-bit memory faults silently, preserving transactional integrity in always-on database servers and preventing costly unplanned downtime from data corruption.
2. Registered signal buffering stabilizes command and address lines under full population, enabling higher memory densities per server to maximize virtual machine consolidation ratios.
3. Dual Rank x4 organization enables rank interleaving, which saturates memory channels efficiently and sustains bandwidth for consistent latency under mixed enterprise workloads.
4. The 8 GB capacity provides a dense enough footprint for hypervisor overhead and moderate container fleets, balancing cost and multi-tenancy inside scale-out cloud nodes.
5. 1600 MT/s throughput accelerates in-memory caching and buffer pools, giving legacy DDR3 platforms the headroom to serve concurrent requests with reduced queue delays.

Why These Specs Matter

As a server-grade DDR3 Registered DIMM, the M393B1K70QB0-CK0Q8 is purpose-built for enterprise data centers where downtime is simply not an option. Its four key characteristics directly address the real-world pain points of IT managers overseeing virtualization clusters and in-memory databases.

First, the ECC error correction automatically detects and corrects single-bit memory errors caused by cosmic radiation or electrical noise. In a dense virtualization cluster running dozens of virtual machines, an undetected bit-flip can corrupt live transactional data or crash a hypervisor—ECC eradicates that risk. Second, the Registered signal type uses a buffer to stabilize command and address signals, enabling a server to populate all 24 DIMM slots without signal degradation. This means you can reliably scale total memory capacity well beyond hundreds of gigabytes, critical for consolidating VMs. Third, the Dual Rank x4 architecture utilizes internal bank interleaving to minimize access latency and boost sustained bandwidth, which translates directly into faster query response times for memory databases like SAP HANA or Redis. Finally, running at DDR3-1600 with a CAS latency of 11, this module delivers a mature, power-efficient 1.5V balance of speed and timing that keeps heat output and energy costs low while extending the service life of existing server infrastructure. In short, this memory safeguards data integrity, scales capacity confidently, and optimizes transactional throughput—all non-negotiable for modern, always-on business applications.

Endurance & Reliability

This is server-class memory, specifically an 8 GB DDR3-1600 ECC Registered RDIMM (M393B1K70QB0-CK0Q8). Its ECC and registered design makes it suitable for always-on workloads. Below are capacity planning guidelines for three key server scenarios.

General Virtualization
Balance total capacity with cost per VM. Start with at least six modules (48 GB) to populate the primary memory channels of a dual-socket platform, leaving room for growth. Scale to 12 or 16 modules (96–128 GB) for mixed workloads of 15–25 light VMs. Always install identical DIMMs in each channel to sustain stable memory interleaving and ECC protection.

In-Memory Database
Maximize capacity and reliability by fully populating all available DIMM slots. In a two-socket server with 12 slots, use sixteen or twenty-four 8 GB RDIMMs to reach 128–192 GB, keeping datasets entirely in RAM. Strictly match part numbers across banks; mixing ranks or vendors can destabilize large-memory operation and negate the benefit of ECC.

HPC
Prioritize memory bandwidth over raw capacity. Populate all memory channels evenly—typically three or four DIMMs per socket for triple- or quad-channel DDR3 architectures—to maximize throughput per core. A balanced configuration of six or eight 8 GB modules (48–64 GB) delivers strong bandwidth for MPI jobs. Keep the dual-rank x4 DIMMs identical per channel to avoid speed degradation under heavy floating-point load.

Verified Compatibility

Rigorously tested, this server memory is compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, IBM System x3650 M4, and more.

FAQ