General

Engineer's Note

This unbuffered ECC DDR2 module with dual-rank x8 organization is ideally suited for legacy entry-level servers and workstations that demand data integrity, such as small business file servers or industrial control systems. Its ECC error correction and CAS latency of just 6 cycles at 800MHz deliver reliable, low-latency performance critical for memory-sensitive applications where stability outweighs raw throughput.

Technical Specs & Insights

1. ECC error correction detects and corrects single-bit memory faults in real time, preserving data integrity for always-on server applications where uptime is non-negotiable.
2. Unbuffered UDIMM design eliminates register latency, offering a simple and cost-effective upgrade path for entry-level servers running lightweight workloads.
3. Dual Rank x8 organization interleaves memory banks to increase effective bandwidth, helping sustain stable performance under concurrent user requests.
4. PC2-6400 speed class delivers dependable throughput for legacy server environments, ensuring responsive operation of essential background services.
5. CL6 latency provides a balanced timing profile that supports consistent execution of transactional tasks without compromising system stability.

Why These Specs Matter

For creative professionals and enthusiast gamers still leveraging robust LGA 775 or similar platforms, the Micron MT18HTF25672AZ-80EH1 UDIMM brings a rare fusion of enterprise-grade data integrity and desktop agility. Its ECC error correction acts as a relentless safeguard during marathon 4K video rendering sessions in DaVinci Resolve, detecting and correcting single-bit memory errors that would otherwise corrupt frames and waste hours of intensive work. The unbuffered signal topology strips away buffer latency, offering the direct, low-delay communication that fast-twitch competitive games like Counter-Strike depend on for split-second responsiveness and stutter-free action. Moreover, the dual-rank x8 organization maximizes available bandwidth through bank interleaving, meaning your streaming software and background tasks never steal throughput from the game or timeline playback. Driven at 800MHz with a razor-sharp CL6 latency, this module serves every CPU request with immediate precision. Ultimately, it transforms a classic workstation into a reliable, high-performance hub where creativity and play coexist without compromise.

Endurance & Reliability

Server Memory
This module is a DDR2 ECC Unbuffered DIMM, designed for entry-level servers and workstations requiring data integrity.

General Virtualization
For light virtualization on older platforms, populate at least four modules (8 GB total) to run a hypervisor and two to three low-resource VMs. Enable memory interleaving if supported to boost throughput, as DDR2-800 bandwidth is modest by modern standards.

In-Memory Database
An in-memory database demands substantial capacity and low latency. With only 2 GB per module, even fully populating six slots yields 12 GB—suitable only for tiny test datasets. For production, migrate to a newer platform; as a stopgap, install the maximum number of identical ECC UDIMMs to ensure error correction and avoid swap.

High-Performance Computing (HPC)
HPC workloads often benefit from bandwidth over capacity. A balanced configuration of eight modules (16 GB) in a dual-processor board filled with dual-rank x8 DIMMs maximizes interleaving and ranks per channel, slightly improving sustained transfer rates for memory-bound scientific kernels. Still, this legacy DDR2 infrastructure is severely limited for modern HPC scales.

Verified Compatibility

Rigorously tested, compatible with servers: Dell PowerEdge R200, T105, HP ProLiant DL120 G5, IBM System x3250 M2, and more.

FAQ