General

Engineer's Note

This Micron DDR3-1333 UDIMM with ECC is ideally suited for entry-level servers and workstations running memory-intensive workloads such as virtualization and small-scale databases, where its dual-rank x8 configuration enhances interleaving for improved bandwidth and its unbuffered architecture ensures low latency. The 1.35V low-voltage operation reduces power consumption while Error Correcting Code (ECC) delivers critical data integrity, and the CAS 9 latency keeps response times tight under sustained load.

Technical Specs & Insights

1. ECC protection silently corrects single-bit errors, preserving data integrity in always-on server environments where memory faults can corrupt financial or medical records.
2. Unbuffered architecture trims access latency, benefiting lightweight virtualization hosts that need deterministic response times without the cost of registered memory.
3. Low-voltage operation reduces power draw per DIMM, directly lowering electricity and cooling expenses in dense rack deployments running round the clock.
4. Dual-rank x8 organization keeps rank interleaving active, sustaining memory bandwidth when multiple virtual machines compete for the data bus.
5. 1333 MHz speed provides a balanced bandwidth envelope for file serving and collaboration workloads, keeping concurrent user requests flowing smoothly.

Why These Specs Matter

The MT18KSF1G72AZ-1G4D1 is an 8 GB DDR3-1333 ECC UDIMM, a server‑grade memory module built for single‑socket servers, NAS systems, and entry‑level workstations where data integrity and power efficiency are non‑negotiable. Its ECC capability means every bit is protected against random single‑bit flips caused by cosmic radiation or electrical noise — errors that silently corrupt financial calculations, hypervisor states, or a ZFS checksum tree. In a 24/7 virtualisation cluster, a single undetected memory error can crash a hypervisor and take down a dozen guest VMs, directly translating into revenue loss. Here, ECC turns an invisible threat into a handled exception. The 1.35 V low‑voltage design drives down thermal load and operating cost in dense micro‑server farms, while the dual‑rank x8 organisation interleaves two internal ranks to sustain high command‑to‑data throughput under queued workloads. For an in‑memory database like Redis or a write‑intensive log server, dual rank reduces memory controller stall cycles, delivering measurably faster response times under concurrent access. Because it is unbuffered, latency stays minimal — exactly what a latency‑sensitive mail server or a small‑scale VMware Essentials host demands. This module closes the gap between true server RDIMMs and desktop memory: you gain professional error correction and energy savings without the cost and power overhead of registered logic, keeping your always‑on services safe, efficient, and affordable.

Endurance & Reliability

Server Memory – DDR3 ECC Unbuffered DIMM (8GB, 1333MHz, 1.35V)

General Virtualization
This 8GB UDIMM with ECC is ideal for lightweight hypervisors (e.g., VMware ESXi on single-socket Xeon E3 systems). Populate all four DIMM slots identically to reach 32GB, enabling 10–15 low-resource VMs while ECC prevents silent data corruption.

In-Memory Database
For Redis or Memcached clusters, maximize capacity by installing dual-rank x8 modules in every available channel, aiming for 64–128GB. ECC is mandatory here to protect in-flight transactional data against single-bit errors that could corrupt the dataset.

High-Performance Computing
Configure symmetric 4-module 32GB setups with matched Dual Rank DIMMs to leverage interleaving and bandwidth. The low 1.35V operation reduces thermal load in dense compute nodes, improving stability during memory-intensive MPI and OpenMP parallel workloads.

Verified Compatibility

This rigorously tested server memory is compatible with Dell PowerEdge R210 II, T110 II, HP ProLiant ML310e Gen8, and more.

FAQ