General

Engineer's Note

This RDIMM with ECC and registered signal buffering is engineered for legacy server platforms requiring rigorous data integrity, where its Dual Rank x4 organization and CL6 latency provide stable throughput for memory-intensive workloads like virtualization or small-scale in-memory databases. The registered architecture enhances signal integrity across high-density configurations, while ECC actively corrects single-bit errors to prevent silent data corruption in mission-critical environments.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit memory errors on the fly, eliminating silent data corruption risks that are unacceptable in transactional database and financial processing environments.

2. Registered signal buffering stabilizes command and address lines across fully loaded channels, allowing dense server memory populations to scale without compromising signal integrity under 24/7 operation.

3. Dual Rank x4 organization interleaves banks across ranks to sustain peak channel utilization, reducing latency penalties and improving throughput for heavily consolidated virtualization workloads.

4. The 4 GB capacity per stick provides the right granularity for moderately scaled legacy enterprise servers, allowing cost-effective expansion while preserving enough headroom for stable multi-instance application hosting.

5. Running at 800 MHz delivers a balanced bandwidth envelope of PC2-6400, which prevents memory bottlenecks for simultaneous I/O and caching tasks in entry-level server roles where predictable latency trumps peak transfer rates.

Why These Specs Matter

The MT36HTF51272PZ-80EH1 is a server-class Registered DIMM, and its four defining characteristics are engineered precisely for environments where downtime is not an option. Start with the ECC error correction—in a virtualized cluster running multiple VMs on a single host, a single-bit memory flip can silently corrupt a guest operating system or a transactional database. ECC detects and corrects these errors on the fly, preventing hours of forensic troubleshooting and data inconsistency. Next, the Registered buffer takes that integrity further. By re-driving address and command signals, it stabilizes the memory bus when you fully populate all channels with high-density modules—essential for a database server leveraging in-memory caching, where 4 GB might be strategically paired to maximize RAM capacity without signal degradation. The dual-rank x4 organization amplifies usable bandwidth through interleaving; for an in-memory database like Redis or a heavy OLTP workload, concurrent access across ranks translates directly into lower latency and higher transactions per second. Finally, the standard 1.8V operating voltage and 800MHz speed deliver that performance within a predictable thermal envelope, meaning your 1U hypervisor host stays cool under sustained load without throttling. Together, these aren’t just specifications—they are guarantees of consistency, uptime, and accelerated data throughput that your mission-critical applications demand.

Endurance & Reliability

General Virtualization
For legacy virtualization hosts using DDR2-era platforms, this 4GB RDIMM provides the ECC reliability required for stable hypervisor operation. Start with a minimum of four modules (16GB) to support a handful of light VMs, and populate all available channels—typically in balanced sets of 4 or 8—to maximize memory bandwidth, as registered memory allows high-density configurations without sacrificing signal integrity.

In-Memory Database
In-memory databases demand both capacity and fault tolerance, making these ECC Registered DIMMs essential even at 4GB apiece. Aim to fully populate the server board with 8 or 16 identical modules (32–64GB total) to build a resilient dataset cache. The dual-rank x4 organization improves bank-level parallelism, slightly boosting transaction throughput in small to medium Redis or Memcached instances on older hardware.

High Performance Computing
HPC clusters built on DDR2 nodes benefit from the deterministic latency and error correction of RDIMMs. Configure each compute node with 8 modules (32GB) to keep simulation data in RAM and maintain stable inter-process communication. The CL6 timing and 800MHz speed offer predictable performance for MPI-based workloads, though capacity planning should favor multiple identical nodes rather than larger single-node builds to match the era’s typical distributed computing model.

Verified Compatibility

This rigorously tested server memory ensures compatibility with Dell PowerEdge 2970, HP ProLiant DL385 G5, and IBM System x3455.

FAQ