General

Engineer's Note

This 4GB DDR3-1333 RDIMM with ECC and registered signal buffering is a server-grade module specifically designed for legacy enterprise platforms, ensuring data integrity in virtualization hosts, memory-resident databases, and other critical workloads. Its dual-rank x4 organization and CL9 latency deliver balanced throughput and reliability, while the 1.5V operation maintains compatibility with older servers that demand strict JEDEC voltage adherence.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors in real time, ensuring data integrity for financial transactions and mission-critical enterprise applications where even a single bit flip is unacceptable.
2. Registered signal type buffers command and address lines, enabling servers to support significantly higher memory capacities per channel without sacrificing signal integrity under heavy multi-DIMM configurations.
3. Dual Rank x4 organization doubles the number of accessible ranks, boosting memory bandwidth and reducing latency through interleaving, which is vital for sustaining throughput in dense virtualization clusters.
4. A capacity of 4 GB per module provides a foundational building block for cost-effective scale-out deployments, allowing fine-grained memory allocation for lightweight containers and microservices.
5. Running at 1333 MHz, this DDR3 module delivers a balanced speed that matches the memory bandwidth requirements of older generation server platforms, ensuring stable operation in mixed-workload data rooms.

Why These Specs Matter

For servers, the MT36JSZF51272PZ-1G4G1FE RDIMM is built for relentless data integrity and uptime. Its ECC technology actively corrects single-bit errors, preventing silent data corruption in virtualized clusters where dozens of VMs share physical memory—a single flipped bit can crash a critical database or hypervisor. The registered buffer decouples the memory controller from the DRAM chips, enabling large deployments without signal degradation. This means you can confidently populate all channels with high-density modules, essential for in-memory databases like SAP HANA that demand massive, rock-solid capacity. Furthermore, the dual rank x4 organization interleaves memory accesses to boost effective bandwidth, accelerating simultaneous queries and VM migrations. The 1333MHz speed with CAS 9 latency delivers responsive, predictable performance, ensuring that real-time transaction processing and virtual switching happen without bottlenecks. This module translates directly into reduced downtime and faster insights.

Endurance & Reliability

General Virtualization
Begin with six 4GB RDIMMs (24GB) populating one DIMM per channel to balance memory bandwidth. Grow capacity by installing additional identical modules in matched pairs, scaling to 48GB or 64GB for heavier VM consolidation. This registered ECC configuration ensures stability and prevents data errors during multi-tenant operations.

In-Memory Database
For in-memory workloads, fully populate all DIMM slots with Dual Rank x4 4GB RDIMMs, achieving total capacities from 64GB up to 128GB. Arrange them symmetrically across each memory channel to maximize rank interleaving, which reduces access latency and boosts query throughput. Registered ECC safeguards persistent data against corruption.

High-Performance Computing (HPC)
Prioritize per-channel bandwidth by installing a single 4GB RDIMM per channel—populating two DIMMs per channel often forces the memory controller to drop to a lower speed. A balanced 32GB configuration (eight modules on eight channels) delivers peak 1333MHz throughput for floating-point operations. For memory-capacity-bound simulations, a 64GB setup can be used, with ECC ensuring error resilience over extended job runs.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R710, HP ProLiant DL380 G7, IBM x3650 M3, and more.

FAQ