General

Engineer's Note

This DDR3-1600 UDIMM with ECC and a dual-rank x8 configuration is purpose-built for entry-level servers or workstations where data integrity is critical, leveraging error correction to prevent silent data corruption in memory-intensive workloads like virtualization and transactional databases. Its low 1.35V operating voltage enhances power efficiency while the unbuffered signaling and CL11 latency strike a balance between reliable ECC protection and responsive access for microserver and small NAS deployments.

Technical Specs & Insights

1. ECC protection actively detects and corrects single-bit memory errors, safeguarding transactional databases and critical services from silent data corruption that could otherwise crash a node.
2. 8 GB capacity delivers sufficient headroom for lightweight virtualized workloads or containerized microservices without overspending on rarely utilized resources.
3. 1600 MHz transfer rate sustains responsive throughput in data-intensive operations such as in-memory caching and real-time analytics pipelines.
4. 1.35V low-voltage operation meaningfully reduces power draw per DIMM, which compounds into measurable energy savings across a fleet of always-on servers while easing cooling demands.
5. Dual Rank x8 organization leverages rank interleaving to keep data buses saturated, directly improving memory bandwidth efficiency under heavy concurrent access typical in multi-tenant hosting.

Why These Specs Matter

When deploying an entry-level server for a virtualized cluster or an in-memory database like Redis, the M391B1G73QH0-YK0 isn’t just another stick of RAM—it’s a safeguard for your business logic. This 8GB DDR3 1600MHz Unbuffered ECC UDIMM directly tackles a silent threat: single-bit errors caused by background radiation. Without ECC, a flipped bit in a virtual machine’s memory state can corrupt a financial transaction or crash a container silently. The built-in error correction detects and corrects these flips in real time, keeping your database queries consistent and your hypervisor stable. Meanwhile, the dual-rank x8 organization interleaves memory accesses across two internal ranks, boosting the command-per-clock efficiency that in-memory caches rely on for high-throughput read operations. Because it runs at a low 1.35V, it also reduces thermal waste inside your 1U or micro-ATX server chassis—a measurable gain when you’re stacking eight or sixteen modules. In a VMware vSphere host running multiple VMs, that means fewer thermal throttling events and lower long-term power bills, all without sacrificing the data integrity your workload demands.

Endurance & Reliability

This is a server-class DDR3 8GB ECC unbuffered DIMM (UDIMM), delivering 1600MHz at 1.35V with dual‑rank x8 organization. It is designed for single‑socket servers and workstations that require data integrity and energy efficiency.

General Virtualization
Populate all memory channels identically to maximize throughput and sustain multiple VMs. A balanced setup of 4 x 8GB (32GB) or 6 x 8GB (48GB) provides ample capacity for moderate consolidation while ECC guards against soft errors. Always install modules in matched pairs to preserve channel interleaving.

In‑Memory Database
Capacity drives configuration—fill every DIMM slot to hold entire datasets in RAM. With a single‑socket board supporting 8 or 16 slots, deploy 8 x 8GB (64GB) or 16 x 8GB (128GB) for large in‑memory stores. Using identical dual‑rank DIMMs per channel maintains low latency and consistent performance under heavy read/write workloads.

High‑Performance Computing
Prioritize bandwidth and balanced access. Install one 8GB module per channel (e.g., 4 DIMMs on a quad‑channel platform) to avoid rank contention and run at the rated 1600MT/s. For capacity‑hungry HPC jobs, place two identical DIMMs per channel; the dual‑rank design already delivers strong concurrency, and keeping all ranks uniform ensures predictable memory performance.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge T110 II, HP MicroServer Gen8, Lenovo TS140, Supermicro X9SCM.

FAQ