General

Engineer's Note

This is a server-class DDR3 Registered DIMM with ECC, specifically engineered for legacy data center platforms running memory-intensive workloads such as virtualization and in-memory databases. Its dual-rank x4 organization and 1.35V low-voltage operation enhance signal integrity and thermal efficiency, while ECC and registered buffering ensure critical data integrity under sustained, heavy load.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors, safeguarding transactional data integrity and preventing costly silent corruption in always-on server environments.
2. Registered signal buffering stabilizes command and address routing across densely populated memory channels, preserving signal integrity for large-scale virtualization hosts.
3. An 8 GB module capacity offers an optimal density for scaling virtual machines, maximizing guest instance counts per server without immediate DIMM slot exhaustion.
4. Dual Rank x4 organization uses rank interleaving to keep the memory bus fully utilized, ensuring consistent low-latency responsiveness under heavy enterprise workload consolidation.
5. 1.35V low-voltage operation reduces power draw and thermal output in rack-dense data centers, directly lowering energy costs and enabling more sustainable server deployment.

Why These Specs Matter

When you deploy this Micron 8GB DDR3 RDIMM (MT36KSF1G72PZ-1G4D1) in a virtualized cluster, you are directly investing in uptime and signal integrity. The registered architecture buffers command and address lines, allowing a server to fully populate its 24 DIMM slots without the signal degradation that causes intermittent crashes. For your VMware or Hyper-V farm, that means stable VM density under heavy multi-tenant pressure. Silently working in the background, ECC scrubbing continuously catches and corrects single-bit errors—cosmic radiation flipping a memory cell could otherwise corrupt a financial transaction or take down multiple virtual machines with no warning. In an in-memory database like Redis or SAP HANA, where the entire dataset is hot in RAM, that data integrity is non-negotiable. The dual-rank, x4-organized design interleaves memory banks to boost sustained bandwidth, directly trimming query latency during real-time analytics. Meanwhile, operating natively at 1.35V instead of the standard 1.5V dramatically cuts thermal load and energy draw across your rack. This lowers your cooling bill and extends hardware lifespan, all while delivering rock-solid 1333MHz performance that keeps mission-critical services responsive around the clock.

Endurance & Reliability

Capacity Planning for the 8GB DDR3-1333 ECC RDIMM
This server-grade registered DIMM (1.35V, CL9, dual-rank x4) is built for multi-socket stability. Use the guidance below to size memory for three common enterprise workloads.

General Virtualization
Populate one module per memory channel to balance bandwidth and avoid bottlenecks. In a typical dual-socket server with three channels per CPU, installing six (48 GB) or twelve (96 GB) sticks comfortably hosts 20–40 light-to-medium VMs. The low 1.35V voltage also cuts power and cooling costs in always-on hosts.

In-Memory Database
Capacity is the top priority. Maximise density by filling all slots—often three DIMMs per channel—reaching 96 GB or more per processor. ECC and registered signalling safeguard large in-memory caches, while using identical dual-rank modules prevents clock-speed penalties under heavy caching loads.

High-Performance Computing
Achieve peak 1333 MT/s bandwidth with one DIMM per channel. For a quad-channel platform, eight modules (64 GB) deliver uniform, low-latency throughput for parallel simulations. Balanced population and the dual-rank x4 design sustain full speed under sustained floating-point or scientific workloads.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, Lenovo ThinkServer RD450.

FAQ