General

Engineer's Note

This 256 GB DDR4-1600 CDIMM with ECC and registered signaling is engineered for high-density server environments, excelling in memory-intensive workloads such as virtualization and in-memory databases where data integrity is paramount. Its octal-rank x4 organization maximizes capacity per channel while the CL11 latency and 1.2 V power efficiency ensure stable, responsive performance in multi-slot configurations.

Technical Specs & Insights

1. Massive module density allows a single server to host far more virtual machines, directly reducing hardware footprint and licensing overhead.
2. End-to-end error correction prevents silent data corruption, a non-negotiable safeguard for financial transactions and mission-critical databases.
3. The register buffer decouples the memory chips from the bus, enabling fully populated multi-DIMM channels without signal degradation in large-scale storage and compute nodes.
4. Octal rank x4 organization maximizes bank-level parallelism, sustaining peak bandwidth even under the heavy, simultaneous read/write demands of big data analytics.
5. Low 1.2V operation cuts per-bit energy consumption, accumulating into substantial cooling and power savings across a full data center deployment.

Why These Specs Matter

This 256GB DDR4-1600 registered ECC module is engineered specifically for enterprise servers, where downtime simply isn’t an option. In a virtualization cluster running dozens of critical VMs, its integrated ECC actively detects and corrects single-bit memory errors before they can silently corrupt guest operating systems or trigger cascading failures—protecting your entire service stack. The registered buffer simultaneously stabilizes control signals across every populated 276-pin slot, so you can fill all channels with these high-density Octal Rank x4 DIMMs without sacrificing signal integrity, a crucial advantage for densely packed hosts. When powering an in-memory database like SAP HANA, the massive 256GB capacity per stick lets you keep terabytes of hot transactional data directly in RAM, delivering microsecond response times and eliminating storage bottlenecks that kill analytical performance. The 1.2V operating voltage and CL11 low latency further translate into tangible gains: reduced power and cooling costs across the data center, and snappier data access under sustained load. Together, these four pillars deliver the reliability, density, and efficiency that virtualized environments and real-time database platforms demand.

Endurance & Reliability

This is a server-grade memory module, evidenced by its 256GB capacity, Registered ECC, Octal Rank x4, and 276-pin CDIMM form factor. The following capacity planning scenarios are tailored for typical data-center workloads using this high-density DDR4-1600 module.

General Virtualization
Virtualized clusters need balanced memory capacity and channel bandwidth. Install identical 256GB modules in a 1 DIMM per channel (1DPC) configuration across all memory channels of each server—often 8 or 12 modules per socket. This yields 2–3TB per host for dense VM consolidation while keeping the memory interface stable and avoiding the speed penalties of 2DPC.

In-Memory Database
In-memory databases like SAP HANA demand extreme capacity and fault tolerance. Populate every available DIMM slot with these 256GB ECC modules to build a multi-terabyte dataset footprint per node. A dual-socket server with 24 slots can reach 6TB, allowing large databases to reside entirely in RAM. The octal-rank design delivers high density, though the 1600MT/s speed is acceptable for latency-sensitive transactional loads.

High Performance Computing
HPC applications prioritize memory bandwidth. Use these modules in a strict 1DPC layout across all channels to sustain the rated DDR4-1600 speed without clock reductions. For capacity-bound simulations, leverage the 256GB size to keep DIMM count low—fewer ranks per channel improve signal integrity. Scale out across many nodes rather than overloading a single server, pairing each node with the fastest supported channel count for parallel throughput.

Verified Compatibility

Rigorously tested Registered ECC server memory; compatible with Dell PowerEdge R730, R630, HPE DL380 Gen9, Lenovo x3650 M5.

FAQ