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| Product Type | Memory Module |
|---|---|
| Compliance Standards | RoHS |
| Memory Capacity | 4 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35V |
| RAM Speed | 1600MHz |
| RAM Standard | DDR3-1600/PC3-12800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL11 |
| Rank | Single Rank x4 |
| Quantity of Pins | 240-pin |
| RAM Genre | VLP RDIMM |
This VLP RDIMM is an ideal choice for space-constrained server platforms and micro-servers where every millimeter of clearance matters, delivering reliable 4 GB DDR3-1600 performance at an energy-efficient 1.35V with ECC to safeguard data integrity in virtualized environments and lightweight in-memory databases. The single-rank x4 registered architecture and CL11 latency ensure stable signal integrity on dense memory channels, enabling consistent uptime for entry-level server workloads that prioritize data reliability over raw capacity.
1. Error-correcting code protection detects and corrects single-bit memory faults, safeguarding transactional databases and virtualized workloads from silent data corruption that could cascade into costly downtime.
2. Registered signal buffering amplifies command and address signals, enabling reliable population of all DIMM slots in multi-socket servers and preserving memory channel stability under heavy load.
3. Very low-profile RDIMM form factor reduces physical obstruction in dense rack and blade chassis, improving system airflow and allowing tighter component packing for hyper-scale server deployments.
4. Low-voltage DDR3L operation materially lowers server power draw and thermal output, directly reducing cooling infrastructure demand and cumulative energy cost across the data center.
5. Single-rank configuration with narrow-interface DRAM devices minimizes electrical loading on the memory bus, while the fine-grained x4 organization strengthens per-chip error containment and boosts overall data integrity.
Built for mission-critical server environments, the Micron MT18KDF51272PZ-1G6 VLP RDIMM transforms four engineering decisions into real-world resilience. First, ECC continuously corrects single-bit memory errors caused by background radiation, which is not a theoretical threat. In a virtualized cluster hosting dozens of VMs on one physical node, an uncorrected bit flip can silently corrupt hypervisor data structures and crash every guest simultaneously; this module prevents that cascade. Second, the registered signal buffer stabilizes the electrical load when populating all 24 DIMM slots in a 2U rack server, maintaining clean command addressing even as you scale up an in-memory database like Redis—no signal degradation means no transaction rollbacks under peak query pressure. Third, the 1.35V low-voltage operation reduces thermal waste across a dense farm, directly lowering cooling costs and extending component lifespan without sacrificing the 1600MHz data rate. Finally, the VLP form factor is engineered for blade chassis and 1U nodes where every millimeter counts; you can populate the inner sockets that standard-tall DIMMs would block, maximizing capacity in horizontally scaled analytics nodes. Together, these attributes keep your data accurate, your services online, and your TCO under control.
Based on its ECC, Registered, 240-pin design and VLP RDIMM form factor, this is a server memory module. The capacity planning recommendations below address typical server workloads.
General Virtualization
To host multiple virtual machines, maximize capacity by fully populating all memory slots with identical 4GB RDIMMs. A dual-socket server using 24 modules provides 96GB, suitable for light-to-moderate consolidation. Configure memory sparing or mirroring if the platform supports it to increase service uptime.
In-Memory Database
In-memory databases demand both capacity and low latency. Populate all memory channels evenly with 4GB modules—using 24 units (96GB) in a dual-socket system—to enable effective channel and rank interleaving. If higher capacity forces 2DPC, expect possible speed downgrades; prioritize balanced population for consistent performance.
High-Performance Computing (HPC)
HPC workloads are bandwidth-sensitive. Install one identical 4GB RDIMM per channel (1DPC) to unlock full quad-channel or triple-channel interleaving and achieve peak throughput. A typical node with 8 modules (32GB) offers an optimal balance of memory bandwidth and capacity for parallel scientific tasks.
Rigorously tested server memory, compatible with Dell PowerEdge R620, HP ProLiant DL380p Gen8, Lenovo System x3650 M4, and similar platforms.
Q: Can I mix this MT18KDF51272PZ-1G6 with other memory modules of different brands or speeds?
A: Mixing is strongly discouraged for registered server memory. Differing brands, speeds, or ranks can cause instability. For reliable ECC function, always install identical modules with the same Micron part number.
Q: Is this memory compatible with my system?
A: This module suits servers with DDR3 ECC Registered DIMM slots, typically Intel Xeon E5/5600 series or AMD Opteron. Verify your board supports 1.35V VLP RDIMMs and check the qualified vendor list.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical modules per channel, starting with the first DIMM slot (often blue). For a single-rank x4 RDIMM, balance across memory channels as detailed in your server motherboard manual to maximize bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. As enterprise ECC registered memory, it adheres strictly to JEDEC DDR3-1600 (PC3-12800) standards at 1.35V. XMP and overclocking are not supported to guarantee data integrity.
Q: What warranty and typical failure rate can I expect?
A: It includes a 1-year warranty. Designed as Micron server-grade memory, it offers extremely low failure rates under continuous operation, ensuring high reliability for mission-critical deployments.