General

Engineer's Note

This DDR3-1866 ECC Unbuffered DIMM is tailored for entry-level servers and workstations where data integrity is critical, leveraging error-correcting code to detect and correct single-bit memory errors in memory-intensive tasks. Its dual-rank x8 organization and CL13 latency strike an effective balance between signal integrity and responsive performance on 240-pin platforms, making it a reliable upgrade for virtualization hosts or lightweight database applications.

Technical Specs & Insights

1. ECC protection continuously corrects single-bit errors, preventing silent data corruption that could compromise financial ledgers or database integrity in always‑on server environments.
2. A carefully sized capacity supports efficient virtual machine consolidation, letting operators run multiple lightweight guests without wasting power or budget on overprovisioned memory.
3. The high data transfer rate saturates dual‑channel server platforms smoothly, accelerating large‑page table walks and reducing latency in memory‑hungry analytic workloads.
4. Dual‑rank organization enables rank interleaving, keeping the memory pipe‑line busy and boosting sustained throughput when multiple cores hammer the subsystem simultaneously.
5. Tight CAS latency shortens the critical fetch‑to‑execution interval, directly speeding up transactional database commits and real‑time query responses under heavy concurrency.

Why These Specs Matter

Based on the UDIMM form factor and ECC support, this is an entry‑server and workstation memory module. In a virtualisation host running multiple virtual machines, a single undetected bit flip caused by background radiation can silently corrupt guest data or crash an entire node overnight. The module’s hardware ECC instantly identifies and corrects single‑bit errors, delivering the uptime assurance that hypervisor clusters demand without the cost of registered memory. For in‑memory databases like Redis or a SQL buffer pool, the dual‑rank x8 architecture lets the memory controller interleave accesses across ranks, effectively pipelining commands and sustaining 1866 MT/s bandwidth where a single‑rank stick would stall. That keeps query latency low and transaction throughput predictable under load. The CL13 latency further reduces wait cycles during cache‑sensitive workloads. With a standard 1.5 V operating voltage and RoHS compliance, it drops straight into 240‑pin server boards and workstations without compatibility surprises, making it a practical, data‑safe upgrade for file servers, render nodes, or small virtualisation setups where every error matters.

Endurance & Reliability

General Virtualization
For general virtualization, reliable capacity with ECC protection is critical. Deploy these 8 GB dual‑rank UDIMMs in a balanced configuration—populate all memory channels symmetrically to ensure consistent VM performance. A typical entry‑level server with four channels gains a solid 32 GB using four modules, while expanding to eight modules provides 64 GB of headroom for moderate consolidation without overcommitting resources.

In‑Memory Database
In‑memory databases demand large, error‑free footprints. Maximize capacity by populating every memory slot with identical 8 GB ECC UDIMMs, staying within the platform’s rank limits. For instance, a dual‑socket server with eight DIMM slots per CPU can reach 128 GB, safeguarding datasets with single‑bit error correction. The dual‑rank design increases bank parallelism, improving throughput for latency‑sensitive transactional workloads.

High‑Performance Computing
HPC nodes benefit from high bandwidth and uniform access patterns. Install one DIMM per channel across all available channels to extract the full DDR3‑1866 bandwidth. A common configuration uses 8 modules (64 GB) in a dual‑socket server, allowing dual‑rank interleaving to keep data streaming to compute cores. The 1.5 V supply and unbuffered design help maintain power efficiency, which is valuable in dense, compute‑intensive clusters.

Verified Compatibility

Rigorously tested server memory, compatible with Dell Precision T1700, PowerEdge T20, HP Z230, MicroServer Gen8, and Lenovo TS140.

FAQ