General

Engineer's Note

This is a 64GB DDR3-1600 registered ECC server memory module (CDIMM) defined for legacy virtualization platforms and memory-intensive workloads like in-memory databases where data integrity is paramount. Its quad-rank x4 organization combined with CL11 latency and registered signaling delivers dense capacity scaling while maintaining stable signal integrity under fully populated channels.

Technical Specs & Insights

1. Massive per-module capacity allows dense memory configurations, essential for scaling virtual machines and containers without adding servers.
2. End-to-end error correction safeguards against data corruption, a non-negotiable feature for financial transactions and scientific computing.
3. Registered buffering decouples memory module loads from the host controller, enabling stable operation in high-capacity multi-DIMM server setups.
4. Quad-rank organization with x4 DRAM chips maximizes interleaving and channel utilization, boosting overall system throughput under heavy concurrent access.
5. The DDR3-1600 speed bin offers balanced bandwidth and latency, sustaining responsive performance for legacy enterprise applications.

Why These Specs Matter

The M351B8G70DM0-YK0M1 is a 64GB DDR3 registered server memory module engineered for mission‑critical enterprise environments, and its ECC, registered signal buffering, Quad Rank x4 architecture, and massive density directly resolve the real‑world pain points faced by data center architects. In a virtualized cluster running dozens of VMs per host, memory integrity is non‑negotiable. The ECC engine corrects single‑bit errors caused by cosmic radiation or electrical noise, eliminating silent data corruption that could otherwise cascade from a flipped bit into multiple workload failures. The registered design buffers command and address lines, letting you populate all DIMM channels without signal degradation—this translates to maximum system memory for heavily consolidated virtualization hosts. For in‑memory databases and real‑time analytics platforms like Redis or SAP HANA, the Quad Rank x4 configuration enables aggressive rank interleaving, sustaining bandwidth under high concurrent access while the 64GB capacity lets you cache entire datasets in RAM. Critical queries stay instant, and every transaction remains accurate, so you never trade performance for reliability. These four attributes work together to keep your services online, your data uncorrupted, and your response times predictably fast—even under the heaviest workloads.

Endurance & Reliability

General Virtualization
For dense virtualization hosts, populate at least four of these 64GB quad-rank RDIMMs per CPU (256GB total) to achieve balanced memory channels and optimal interleaving. Using identical modules across all memory channels avoids NUMA penalties and ensures stable overcommit for dozens of mixed-workload VMs.

In-Memory Database
In-memory databases like SAP HANA or Redis demand extreme capacity and unwavering reliability—these ECC Registered DIMMs are essential. Deploy eight modules per socket (512GB) on a dual-socket platform to deliver 1TB of fault-resilient memory, replicating the entire dataset in RAM for sub-millisecond query response. The quad-rank design maximizes capacity per slot, preserving room for future expansion.

High Performance Computing
HPC clusters benefit from the registered ECC signaling and quad-rank density when scaling memory-bound simulations. A common blueprint is six 64GB DIMMs per node (384GB) in a 2-3-3 channel fill, which balances bandwidth and capacity for parallel MPI tasks. The lower voltage (1.5V) helps contain power density in dense rack deployments while maintaining 1600MT/s throughput under continuous load.

Verified Compatibility

Rigorously tested, compatible with IBM Power S812, S822, S822L, E850, E880.

FAQ