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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 2 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.5V |
| RAM Speed | 1333MHz |
| RAM Standard | DDR3-1333/PC3-10600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | VLP RDIMM |
This VLP (Very Low Profile) Registered ECC DDR3-1333 module is purpose-built for legacy 1U rack servers and blade enclosures where vertical clearance is critical, excelling in virtualized environments and light in-memory database workloads that demand uncompromising data integrity. Its dual-rank x8 organization enables rank interleaving for improved command-bus efficiency, while the ECC and registered signal type work in tandem to sustain stable, error-free operation across fully populated memory channels.
1. Error-correcting code protection catches and corrects single-bit memory errors silently, preserving the unshakable data integrity that transactional databases and long-running analytics workloads demand.
2. The registered buffer decouples the memory chips from the host controller’s electrical load, enabling stable multi-DIMM configurations and reliable signal quality as server memory capacity scales up.
3. Dual-rank x8 organization keeps page-hits high by alternating between two independent sets of DRAM banks, sustaining the steady bandwidth virtualized environments need under heavy consolidation.
4. The very low profile (VLP) form factor tucks smoothly into dense 1U and blade servers, reclaiming critical airflow space to keep downstream components cool without sacrificing memory capacity.
5. Purpose-built 2 GB density fits dedicated network-appliance and edge-server roles perfectly, delivering just enough headroom for specialized packet buffers and lightweight OS instances while keeping power and cost low.
The Micron MT18JDF25672PDZ-1G4G1FE is a server-class DDR3-1333 VLP RDIMM whose four key attributes—ECC, registered signaling, dual-rank x8, and a very low profile—turn into tangible uptime and performance benefits. In a virtualized cluster, a single uncaught memory error can crash multiple guest operating systems. ECC automatically detects and fixes single-bit flips, safeguarding data integrity and slashing the risk of expensive downtime. Registered buffering decouples the memory bus from the CPU, enabling you to populate dense banks of DIMMs without signal degradation; this stability is non-negotiable when hosts run dozens of VMs. The dual-rank design increases interleaving, which elevates effective bandwidth for memory-intensive workloads like an in-memory database. It means faster query responses and smoother real-time analytics under heavy load. Meanwhile, the VLP form factor slides effortlessly into tight 1U racks and blade servers, optimizing airflow and cooling for long-term reliability in always-on deployments.
General Virtualization
This 2GB DDR3-1333 ECC Registered VLP RDIMM is suited for lightweight, entry-level hypervisors running a small number of low-resource VMs. For a basic ESXi or Proxmox host, populate a minimum of four identical modules (8 GB total) to ensure memory interleaving and adequate headroom for the hypervisor plus two to three light Linux guests. Avoid mixing ranks or speeds—stick with dual-rank x8 RDIMMs like this one to maintain signal integrity and reliable ECC coverage.
In-Memory Database
For low-scale Redis or Memcached instances handling modest datasets, start with six to eight of these modules (12–16 GB) installed as three or four DIMMs per memory channel in a balanced configuration. This modest capacity is a practical fit for caching layers, development environments, or read-replicas where data fits entirely in RAM. Always pair identical registered ECC DIMMs and monitor corrected error logs—at 1333 MHz and CL9, the consistent latency profile supports predictable database response times.
High-Performance Computing
In legacy cluster nodes or niche HPC tasks with small per-core memory footprints, these low-profile DIMMs can minimize airflow obstruction in dense 1U/2U chassis. Deploy twelve to sixteen modules (24–32 GB per node) spread across all memory channels to maximize bandwidth for embarrassingly parallel workloads like molecular docking or CFD preprocessing. Choose VLP RDIMMs when you require dense packaging and reliable error correction under sustained 24/7 load, but plan node retirement as 2 GB DIMMs already constrain problem sizes.
Rigorously tested server memory for Dell PowerEdge R710/R720, HP ProLiant DL380 G7, and more.
Q: Can I mix this MT18JDF25672PDZ-1G4G1FE with other memory modules of different brands or speeds?
A: Mixing registered ECC memory of different brands, speeds, or timings is not recommended. It may cause stability issues and force all modules to the lowest common speed, undermining server reliability and performance.
Q: Is this memory compatible with my system?
A: This DDR3-1333 ECC Registered VLP RDIMM is designed for servers using Intel Xeon 5500/5600 series or AMD Opteron platforms with corresponding chipsets. Verify your motherboard’s qualified vendor list for 2GB RDIMM support.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard manual. Typically, populate identical modules per channel starting with the furthest slot from the CPU, balancing across channels to maintain interleaving and maximize throughput.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant registered ECC server module. It does not support overclocking, XMP, or other performance profiles; it is intended for stable operation at its rated 1333MHz (PC3-10600).
Q: What warranty and typical failure rate can I expect?
A: This module carries a one-year warranty. As an enterprise-grade ECC RDIMM built with rigorous testing, it exhibits a very low annualized failure rate, typically well under 0.5% in controlled server environments.