General

Engineer's Note

This 2GB DDR3-1333 registered ECC RDIMM is purpose-built for server platforms demanding high data integrity, making it well-suited for virtualization, memory caching, and light database workloads. Its single-rank x4 organization minimizes electrical loading on the memory bus, enabling more stable operation in dense multi-DIMM configurations while the registered signal type reinforces command/address reliability across populated channels.

Technical Specs & Insights

1. End-to-end error correction safeguards mission-critical data, eliminating silent data corruption in always-on enterprise servers and financial transaction systems.
2. The registered clock driver buffers command and address lines, enabling stable population of all DIMM slots to maximize total memory capacity for dense virtualization farms.
3. Narrow-DRAM organization strengthens advanced ECC schemes by confining hard faults to a single nibble, dramatically improving system uptime and service continuity.
4. High-speed DDR3 transfer rates sustain consistent throughput across concurrent VMs and heavy I/O workloads, preventing memory-induced bottlenecks in database and analytics platforms.
5. A low column access latency accelerates memory read cycles, directly improving transaction processing speeds and application responsiveness under steep user loads.

Why These Specs Matter

As a server-grade DDR3-1333 Registered DIMM, the Micron MT18JSF25672PZ-1G4F1AB equips your infrastructure with four decisive advantages that translate directly into uptime and responsiveness. In a virtualized cluster, a single undetected bit-flip can silently corrupt guest filesystems or in-memory states across dozens of VMs; the module’s integrated ECC engine intercepts such errors in real time, preserving transactional integrity and preventing catastrophic failovers. Its Registered signal buffer decouples the memory bus from the CPU’s electrical load, letting you fully populate 18 DIMM slots per host without signal degradation—an indispensable capability when hypervisors demand hundreds of gigabytes of stable, bankable memory. The single-rank x4 organization works in tandem with advanced ECC to achieve Chipkill-class resilience: even if an entire DRAM chip fails, the data stays whole, so an in-memory database like Redis continues serving queries without a hint of corruption. At CAS 9 latency, the module sharpens access times, accelerating virtual memory paging and cutting response latencies under heavy multi-tenant workloads. Together, these four traits deliver a fault-tolerant, low-latency memory foundation where business continuity and database performance are inseparable.

Endurance & Reliability

This DDR3-1333 ECC Registered RDIMM (2GB, 1.5V) serves legacy server platforms. Given the 2GB density, capacity planning requires maximizing module count and balancing channels.

General Virtualization
Equip each memory channel with at least two modules to reach 16GB total, the minimum for running two or three light VMs. For example, in a server with four channels, install eight RDIMMs (two per channel). The ECC feature safeguards hypervisor stability, and populating all channels enables memory interleaving for smoother multi-VM workloads.

In-Memory Database
Fill every available DIMM slot to achieve the highest possible capacity. A fully populated 24-slot dual-socket server provides 48GB, which is suitable only for small in-memory caches or test databases. Always mirror the module layout across both processor sockets to preserve NUMA locality and minimize remote access latency.

High-Performance Computing
HPC applications depend on bandwidth, so deploy at least one 2GB module per channel (e.g., 8 or 12 RDIMMs). Use a single DIMM per channel at the rated 1333MHz for optimal latency and power. If more memory is needed, populate a second module per channel only after ensuring the platform can sustain full speed.

Verified Compatibility

Rigorously tested for Dell PowerEdge R720, HP DL380p Gen8, IBM x3650 M4.

FAQ