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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 4 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35V |
| 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 | RDIMM |
This RDIMM's DDR3-1333 Registered ECC memory ensures exceptional signal integrity and data reliability for server platforms handling virtualization or in-memory databases. Its 1.35V low-voltage operation and dual-rank x8 configuration balance power efficiency with high-density memory access, making it ideal for 24/7 enterprise environments.
1. ECC protection continuously corrects single-bit errors, preventing silent data corruption that could compromise financial transactions or database integrity in mission-critical server environments.
2. Registered signal buffering stabilizes high-density memory configurations, enabling reliable operation across fully populated server boards without signal degradation under sustained workloads.
3. Dual rank x8 organization leverages interleaving to boost effective bandwidth, ensuring consistent throughput for virtualized applications when multiple VMs contend for memory access simultaneously.
4. The DDR3-1333 speed grade balances responsive data delivery with broad platform compatibility, sustaining adequate session concurrency for lightweight enterprise applications or edge deployments.
5. A 1.35V operating voltage lowers thermal dissipation and energy draw per DIMM, reducing data center cooling costs and improving power efficiency in large-scale server fleets running 24/7.
Judging by the RDIMM form factor, the MT18KSF51272PDZ-1G4K is a server-grade memory module built for IT infrastructure where uptime and consistency are everything. In a dense virtualization cluster hosting dozens of VMs, a single undetected bit flip can silently corrupt a database transaction or kernel operation. The ECC technology immediately detects and corrects such errors, turning what could be nightly debugging sessions into uninterrupted service and preserved data integrity. For memory-intensive applications like an in-memory database, the Registered signal buffer becomes critical when populating multiple DIMMs per channel. It stabilizes command signals so you can install more memory without timing failures, letting your cache-intensive workloads scale predictably under heavy query loads. The 1.35V low operating voltage directly cuts power draw and cooling requirements across a rack full of servers, lowering your total cost of ownership over years of continuous operation. The dual-rank x8 organization further improves bandwidth through interleaving, meaning your Redis or SAP HANA instance experiences measurably lower latency even when serving concurrent users. Every one of these design choices moves you from reactive firefighting to proactive, reliable performance at scale.
General Virtualization
For a typical virtualization host running multiple light to medium VMs, populate the server with at least six to eight of these 4GB RDIMMs to achieve 24–32GB total capacity. The registered ECC nature ensures data integrity across concurrent workloads, while 1.35V low-voltage operation reduces overall power consumption in densely packed racks. Distribute modules evenly across memory channels (e.g., one DIMM per channel) to maximize bandwidth for steady-state VM performance.
In-Memory Database
An in-memory database demands both capacity and fault tolerance; a minimum configuration would use 12 or more modules for 48GB and beyond. Because they are dual-rank x8 RDIMMs, populating all channels with at least one DIMM each delivers the latency-sensitive throughput required for fast indexing and query processing. ECC is critical here to prevent silent data corruption in cache-like database operations.
High-Performance Computing
In HPC environments, sheer memory bandwidth is paramount. Install a full population of 12 identical 4GB RDIMMs (48GB total) across all memory channels to leverage the maximum interleaving and throughput of 1333MHz CL9 DDR3. The low 1.35V voltage aids in thermal management during sustained compute runs, and registered buffering stabilizes the high signal loads typical of multi-socket HPC nodes.
Rigorously tested. Guaranteed compatible with servers like Dell PowerEdge R720, HP ProLiant DL380p Gen8, IBM System x3650 M4.
Q: Can I mix this MT18KSF51272PDZ-1G4K with other memory modules of different brands or speeds?
A: Mixing modules is not recommended. RDIMMs require identical specifications for stability. Using mismatched brands, speeds, or ranks can cause ECC errors and system instability.
Q: Is this memory compatible with my server platform (Intel Xeon or AMD Opteron)?
A: This RDIMM is compatible with servers using Intel Xeon E5/E3 or AMD Opteron 6000 series platforms that support DDR3-1333 Registered ECC memory. Verify voltage and speed support.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate identical DIMMs per channel in the correct slots (e.g., A1, B1, C1) to enable memory interleaving. Refer to your server's slot population guide.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server module without overclocking or XMP support. It operates at fixed 1333MHz with CL9 for reliability and ECC functionality.
Q: What warranty and typical failure rate can I expect?
A: It includes a 1-year warranty. Server-grade RDIMMs undergo rigorous testing and exhibit very low failure rates, typically less than 0.5% AFR under proper conditions.