General

Engineer's Note

Designed for server-class platforms, this 8GB DDR3-1333 Registered ECC RDIMM (PC3-10600, CL9) ensures data integrity and system stability critical for virtualization and in-memory database workloads. Its Dual Rank x4 organization enhances bank interleaving efficiency, while the registered signal type enables reliable operation in high-density configurations with multiple DIMMs per channel.

Technical Specs & Insights

1. Registered buffering isolates the memory controller from electrical loads across fully populated channels, preserving signal integrity in dense rack servers even when all 24 DIMM slots are occupied.
2. ECC protection silently corrects single-bit errors in real time, safeguarding transactional consistency for financial databases and long-duration analytics runs without unplanned downtime.
3. Dual Rank x4 organization leverages rank interleaving to sustain application throughput under heavy multicore loads, while x4 DRAMs boost chipkill reliability for air-cooled, always-on enterprise boxes.
4. An 8 GB capacity per stick hits the density sweet spot for virtualization fleets, raising VM counts per host by keeping active working sets in hardware memory instead of swapping to degraded storage.
5. 1333 MHz throughput delivers 10.6 GB/s of bandwidth per channel, preventing memory bottlenecks when dozens of vCPU threads compete for data during simultaneous OLTP query peaks.

Why These Specs Matter

Designed for servers, the Micron MT36JSZF1G72PZ-1G4D1 is a registered DDR3 module that turns four critical specifications into real-world reliability. ECC memory actively corrects single-bit errors, preventing silent data corruption that can crash a virtualization host or return wrong values from an in-memory database like Redis. The registered signal buffer stabilizes the command and address lines, allowing you to populate all memory channels with 8GB DIMMs without signal degradation—vital when consolidating dozens of VMs on a hypervisor. Dual-rank x4 organization employs rank interleaving, so the memory controller can read one rank while refreshing the other, boosting sustained bandwidth for heavy transactional workloads. And with 1333MHz speed at CL9, the module delivers responsive latency for indexing and real-time analytics. This combination means fewer unexplained failures in a virtualized cluster, reliable performance in memory-resident databases, and the confidence to scale memory capacity without compromising uptime.

Endurance & Reliability

Given the ECC, registered 240-pin RDIMM specification, this is a server module. Guidelines below.

General Virtualization
In a dual-socket host, fill all memory channels per CPU with identical 8 GB RDIMMs for balanced access. For 20–30 VMs, install 8×8 GB or 12×8 GB (64–96 GB) based on channel count. Never mix ranks or speeds to prevent NUMA imbalances and ECC errors.

In-Memory Database
Maximize capacity: populate all DIMM slots to keep entire datasets in RAM. Use two 8 GB RDIMMs per channel (2 DPC) to reach 192 GB in a dual-socket server with 12 slots. The 1333 MHz speed is adequate; prioritize memory footprint over latency for caching and database engines.

High-Performance Computing (HPC)
Memory bandwidth is paramount. Populate one 8 GB RDIMM per channel (1 DPC) to sustain full 1333 MHz speed without throttling. In a 4-channel per CPU server, 8 DIMMs deliver 64 GB of high-bandwidth memory ideal for MPI workloads. For capacity-bound HPC, scale to 16×8 GB (128 GB) with 1 DPC where supported, preserving dual-rank parallelism.

Verified Compatibility

Engineered for server reliability, compatible with Dell PowerEdge R710/R610, HP DL380 G7, IBM x3650 M3.

FAQ