General

Engineer's Note

This 32GB DDR3L-1600 Registered ECC RDIMM (PC3-12800) with quad-rank x4 organization is engineered for legacy server platforms running memory-intensive workloads like virtualization and in-memory databases, where its high per-slot capacity and registered interface deliver rock-solid signal integrity under fully populated channels. The 1.35V low-voltage design conserves power while ECC actively corrects single-bit errors, safeguarding data reliability in mission-critical enterprise environments.

Technical Specs & Insights

1. Registered signal type buffers command and address lines, enabling stable population of all 24 or more DIMM slots in a single server for maximum memory scalability.
2. ECC error identification continuously corrects single-bit errors and detects multi-bit faults, preserving long-term data integrity in financial transactions and database records.
3. 32GB capacity per module allows dense memory configurations, supporting hundreds of virtual machines on a single host without sacrificing per-VM resource allocation.
4. Quad Rank x4 organization packs more banks of memory chips onto the module, boosting overall throughput in memory-intensive workloads like in-memory analytics despite a modest latency trade-off.
5. 1.35V low-voltage DDR3 operation reduces thermal load in densely packed server racks, lowering cooling costs while maintaining reliable 1600MT/s data rates.

Why These Specs Matter

Samsung’s 32GB DDR3-1600 Registered ECC RDIMM (M386B4G70DM0-YK030) is foundational for reliable server operations. Its ECC protection is vital for virtualized clusters and in-memory databases, instantly correcting single-bit errors that would otherwise silently crash a virtual machine or corrupt a financial transaction. The registered buffer re-drives command and address signals, enabling you to fully populate memory channels and scale to 512GB or 1TB without signal degradation, essential for dense VMware farms. The 32GB quad-rank x4 design maximizes capacity per slot, allowing a database server to cache entire working sets in RAM for microsecond latency while preserving DIMM slots for future expansion. Operating at a low 1.35 volts instead of 1.5V, this module reduces power consumption and cooling costs across your data center, directly improving TCO. These attributes ensure your critical workloads run with uncompromising integrity, scalability, and efficiency.

Endurance & Reliability

General Virtualization
For a typical virtualization host running multiple moderate VMs, a balanced population of six to twelve of these 32GB DDR3L RDIMMs (192–384GB total) in a dual-socket server is recommended. Populate all memory channels symmetrically across both CPUs, using two DIMMs per channel where possible, to maximize bandwidth while keeping ranks per channel manageable. The low 1.35V operation reduces power and cooling costs in dense virtualized environments.

In-Memory Database
In-memory databases such as SAP HANA or Redis demand large capacity and high reliability; a fully populated 24-DIMM system with these 32GB modules delivers 768GB of ECC-protected memory. Install six quad-rank DIMMs per processor’s three channels to leverage the LRDIMM-like buffering, which mitigates electrical loading and supports maximum speed despite the quad-rank architecture. This configuration ensures data integrity and low latency for massive working sets.

High-Performance Computing
For HPC workloads that prioritize memory bandwidth, populate each node with 12 of these 1600MT/s modules (384GB) configured as two DIMMs per channel across both sockets. The registered, quad-rank design allows full-speed operation while providing substantial capacity per node. Pair this with a workload manager that pins processes to local memory domains to avoid remote NUMA access penalties and sustain high throughput in compute-bound simulations.

Verified Compatibility

Rigorously tested, compatible with Dell R620, R720, HP DL380p Gen8, IBM x3650 M4.

FAQ