General

Engineer's Note

This ECC Registered VLP RDIMM is optimized for high-density server deployments where physical height clearance is limited, making it ideal for virtualization clusters and memory-resident databases that demand uncompromising data integrity under sustained load. Its dual-rank x4 organization at CL9 latency delivers superior bandwidth efficiency and reliable signal integrity across all ranks, ensuring stable operation in 1.5V registered memory configurations.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit errors in real time, preserving data integrity for mission-critical databases and financial transaction systems that cannot tolerate silent corruption.
2. Registered signal buffering stabilizes command and address lines across fully loaded memory channels, allowing dense server configurations to scale without sacrificing signal integrity.
3. VLP RDIMM form factor reduces module height to clear tight chassis airflow paths, directly lowering thermal strain in high-density rack and blade servers.
4. Dual Rank x4 organization enables rank interleaving that saturates the memory bus, delivering predictable low-latency throughput for heavily consolidated virtual machines.
5. 1333MHz clock speed furnishes sufficient bandwidth per channel to keep multiple enterprise workloads, such as concurrent web serving and lightweight containerized services, running fluidly.

Why These Specs Matter

The MT36JDZS51272PZ-1G4F1AD is a server-class VLP RDIMM purpose-built for data centers where reliability and density converge. Its ECC technology actively corrects single-bit memory errors, a silent threat that can corrupt financial transactions or crash hypervisor hosts in a dense virtualization cluster. Without ECC, bit flips caused by cosmic radiation would lead to unexplained VM failures and data loss—an unacceptable risk for any business-critical workload.

The registered signal buffer (Registered DIMM) stabilizes command address lines, allowing a server to populate all 24 DIMM slots without compromising electrical integrity. This means an ESXi cluster can scale memory to terabytes, running hundreds of virtual machines with predictable latency. The dual-rank x4 organization further amplifies in-memory database performance by interleaving page accesses; time-sensitive analytic queries against Redis or SAP HANA execute measurably faster under load. Finally, the very low profile form factor fits the tightest 1U and blade chassis, preserving airflow and simplifying upgrades in thermal-constrained racks. For IT architects, this memory transforms infrastructure headaches into transparent, resilient performance.

Endurance & Reliability

General Virtualization
This 4GB DDR3-1333 ECC registered VLP module is a server-grade DIMM ideal for virtualizedenvironments. Use one module per memory channel to maintain balanced performance; for a dual-socket platform with three channels per CPU, six modules provide 24GB, enough for a handful of lightweight VMs. Scaling to 12 modules doubles capacity without degrading channel interleaving.

In-Memory Database
In-memory databases demand maximum capacity and rock-solid error correction. Given the 4GB density per stick, fully populate all available DIMM slots. A server with 18 slots (two CPUs, three channels, three DIMMs per channel) yields 72GB of registered ECC memory, suitable for modest in-memory workloads while preserving dual-rank performance and data integrity.

High-Performance Computing (HPC)
These VLP RDIMMs excel in dense HPC nodes where airflow is critical. Install one DIMM per channel to achieve the highest memory bandwidth, avoiding the latency penalties of multiple DIMMs per channel. For a typical node needing 64GB, deploy 16 modules across all channels of both processors. The registered ECC and low-profile design support stable, high-throughput computing.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R710, HPE ProLiant DL380 G7, IBM System x3650 M3.

FAQ