General

Engineer's Note

This DDR2-667 Registered ECC VLP RDIMM is purpose-built for legacy enterprise servers and high-density systems, delivering the data integrity and stability required by virtualization, in-memory databases, and other mission-critical workloads. Its dual-rank x4 architecture with registered signal buffering ensures reliable multi-rank command/address distribution, while ECC and a low CL5 latency provide robust single-bit error correction and tight access timing in compact very-low-profile deployments.

Technical Specs & Insights

1. ECC protection silently corrects single-bit memory errors in real time, preserving data integrity for always-on services like financial transaction logs and database indexing.
2. The registered buffer isolates the electrical load from the memory controller, enabling dense DIMM installations that directly increase the number of virtual machines a single host can stabley run.
3. Very low-profile construction reduces backplane airflow shadowing inside slim rack chassis, helping keep fan duty cycles low and cooling power draw predictable in hyperscale deployments.
4. Dual rank organization with a narrow chip array increases bank-level parallelism, ensuring the memory channel stays fully utilized during simultaneous database queries and host-level replication traffic.
5. The module’s targeted capacity fits utility server roles—such as firewall appliances or domain controllers—where per-slot cost, power, and licensing overheads outweigh the need for oversized memory.

Why These Specs Matter

Designed specifically for server environments, the Samsung M392T5160QJA-CE6 is a DDR2-667 Registered DIMM that transforms aging infrastructure into a reliable engine for critical workloads. Its Error Correcting Code (ECC) detects and corrects single-bit memory errors in real time, a non-negotiable safeguard in dense virtualization clusters where a silent bit-flip could corrupt multiple guest operating systems and bring down business services. The Registered buffer architecture stabilizes electrical loading on the memory bus, enabling you to fully populate all channels with high-capacity modules without signal degradation; this directly supports larger memory pools needed to run dozens of virtual machines or to host an in-memory database like Redis or SAP HANA without stability concerns. The module’s dual-rank x4 organization leverages rank interleaving, effectively boosting read/write bandwidth so simultaneous query processing and transactional indexing feel responsive even under heavy contention. Finally, the Very Low Profile (VLP) form factor fits effortlessly into 1U rack and blade servers where vertical clearance is tight, improving airflow and allowing denser deployments. Collectively, these features deliver the data integrity, scalable capacity, and consistent performance you demand for database acceleration and resilient virtualization.

Endurance & Reliability

The M392T5160QJA-CE6 is a 4GB DDR2-667 Registered ECC VLP RDIMM, designed for servers. Below are capacity planning guidelines for key server workloads.

General Virtualization
Maximize total capacity by populating all available DIMM slots with these 4GB RDIMMs, as each virtual machine requires dedicated memory. A symmetric 8-module configuration (32GB) across dual channels comfortably supports a moderate number of light to medium VMs. Leave additional slots populated to allow future scale-out without dismantling balanced interleaving.

In-Memory Database
Fill every supported slot to achieve the largest possible memory footprint while ECC safeguards in-memory structures. For a 16-slot system, install 16 identical modules to reach 64GB of fully interleaved capacity. The dual-rank x4 organization and registered signaling maintain stable data integrity under high-density, high-utilization loads.

High-Performance Computing (HPC)
Bandwidth-sensitive HPC jobs demand balanced populations: install an equal number of DIMMs per memory channel (e.g., two modules per channel on a quad-channel board) for optimal interleaving. Avoid mixing ranks or leaving channels empty, which degrades throughput. The very-low-profile design also improves airflow in dense compute nodes, helping sustain clock stability during extended parallel runs.

Verified Compatibility

Stringently tested registered server memory, compatible with Dell PowerEdge 2970, HP ProLiant DL385 G2, and more.

FAQ