General

Engineer's Note

This RDIMM is purpose-built for server platforms requiring data integrity under heavy loads, with ECC and registered signal buffering ensuring signal stability across dense memory configurations ideal for virtualization and in-memory databases. Its dual-rank x4 organization paired with CL7 latency delivers balanced throughput and low access times, reinforcing reliability in mission-critical enterprise environments.

Technical Specs & Insights

1. Single-bit error correction safeguards financial and database transactions, preventing silent data corruption in always-on server environments.
2. Registered signal buffering stabilizes high-density memory configurations, enabling seamless scaling for large-scale virtualization clusters.
3. Dual Rank x4 organization interleaves memory accesses, keeping throughput high during simultaneous VM workloads without choking.
4. 1066MHz clock ensures consistent memory bandwidth for moderate-throughput enterprise applications, balancing performance and power efficiency.
5. Four-gigabyte capacity per module offers meaningful density for entry-level servers, supporting multiple light-weight virtualized services without immediate upgrade costs.

Why These Specs Matter

The MT36JSZF51272PZ-1G1 is a server-grade Registered DIMM, purpose-built for enterprise environments where uptime and data fidelity are non‑negotiable. Its ECC technology continuously detects and corrects single‑bit errors, a silent threat that becomes statistically significant across large memory populations. In a dense virtualization cluster hosting dozens of VMs, a flipped bit in memory can corrupt a virtual disk, leading to cascading failures—ECC eliminates this risk at the hardware level, protecting transactional integrity around the clock.

The Registered signal buffer transforms the electrical load characteristics of the memory bus, allowing a single server to support massive amounts of RAM without signal degradation. This is critical when building an in‑memory database like SAP HANA or Redis clusters for real‑time analytics; you can pack multiple high‑capacity RDIMMs per channel and still maintain rock‑solid command‑address stability, which directly translates to faster query responses and fewer node crashes under heavy parallelism.

Finally, the dual‑rank x4 organization and CAS latency of 7 work together to deliver steady bandwidth. The dual‑rank layout interleaves accesses for improved throughput, while the tight CL7 timing reduces the initial data access delay. For a virtualized SQL Server handling thousands of concurrent connections, these characteristics mean consistent performance without the latency spikes that unregistered, non‑ECC memory would introduce during buffer pool lookups, turning hardware reliability into a competitive business advantage.

Endurance & Reliability

The module MT36JSZF51272PZ-1G1 is a server‑grade 4 GB DDR3‑1066 Registered ECC DIMM (RDIMM). Its ECC and registered architecture ensure stable operation across large memory populations, making it ideal for multi‑slot server boards. Below are capacity‑planning guidelines for three critical server workloads.

General Virtualization
Balance capacity and bandwidth by populating channels symmetrically. On a dual‑socket triple‑channel platform, start with six modules (24 GB total) – one per channel per CPU – to guarantee uniform NUMA access. Scale to twelve modules (48 GB) by adding a second module per channel while keeping both sockets identical; this avoids hotspots and supports more VMs without exhausting the memory budget.

In‑Memory Database
Maximize total RAM by filling every available slot. Common dual‑processor boards accept up to 18 of these 4 GB RDIMMs, yielding 72 GB. The dual‑rank x4 organization and Registered logic maintain signal integrity even in fully‑populated configurations. Where uptime is critical, enable rank sparing or mirroring through the BIOS to automatically isolate faulty ranks.

High-Performance Computing (HPC)
Achieve top bandwidth by using one DIMM per channel (1 DPC), which keeps the memory bus at the full 1066 MT/s speed. Six modules (24 GB) satisfy many compute‑bound jobs. If capacity must grow, move to two modules per channel, but plan for a slight clock reduction; always install identical modules across channels to preserve balanced, low‑latency access.

Verified Compatibility

Verified server memory — rigorously tested, compatible with Dell R710/R610, HP DL380 G7, IBM x3650 M3.

FAQ