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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 | Unbuffered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Single Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | UDIMM |
This unbuffered ECC UDIMM is purpose-built for single-socket servers and entry-level workstations where data integrity in light virtualization or network-attached storage tasks is critical. The combination of ECC error correction, a single-rank x8 configuration, and CL9 latency ensures stable, low-heat operation and reliable memory error detection without the overhead of registered signaling.
1. ECC protection catches single-bit errors in real time, preserving data integrity for mission-critical services like financial transactions and small business databases.
2. Unbuffered signal type shaves off buffer latency, giving latency-sensitive workloads such as lightweight virtualization hosts a noticeable responsiveness boost.
3. 1333MHz clock speed yields up to 10.6 GB/s of peak bandwidth, enough to prevent memory bottlenecks for moderate-density web hosting and containerized applications.
4. Single Rank x8 organization reduces electrical loading on the memory controller, enabling cleaner signal quality and higher stability in always-on microserver environments.
5. CL9 column access latency minimizes the delay before data retrieval, accelerating frequent read operations in caching or content delivery nodes.
The Micron MT9JSF25672AZ-1G4F1 is a 2GB DDR3-1333 UDIMM engineered for entry-level servers and workstations where data integrity directly impacts business continuity. When you run a small virtualization cluster hosting multiple lightweight VMs, an undetected single-bit memory error can silently corrupt a database transaction or a hypervisor process, escalating from a minor fault to a full-system crash with costly downtime. The integrated ECC on this module actively detects and corrects these single-bit flips at the hardware level, giving you a reliable compute layer that protects critical workloads without manual intervention.
In a dedicated Network-Attached Storage system or an in-memory caching appliance, consistency is everything. Frequent small-file transfers and real-time journal writes demand not only ECC protection but also predictable timing. This module’s CL9 latency and single-rank x8 organization reduce electrical load on the memory controller, ensuring stable 1333MHz operation across all four DIMM slots even in thermally constrained 1U chassis. Because it runs at the standard 1.5V, you avoid the compatibility and signal integrity issues that can plague mixed-voltage upgrades, keeping your affordable single-socket server stable under continuous read-heavy workloads. Ultimately, this UDIMM delivers the error protection and unfailing uptime your clients expect from a serious storage or virtualized environment.
Capacity Planning Guidance
The specified module is a DDR3-1333 ECC Unbuffered DIMM (UDIMM), placing it in the entry-level server or workstation category. Although each stick provides only 2 GB, these modules remain relevant for maintaining legacy systems, scaling low-footprint services, or populating older single-socket servers that require ECC data integrity without registered buffering.
General Virtualization
For a light hypervisor hosting a few small VMs, install at least four identical modules to reach 8 GB. This allows you to assign 1–2 GB per guest while leaving headroom for the hypervisor. If your board supports six or eight slots, fully populate them to maximize density on these aging platforms.
In-Memory Database
In-memory workloads demand capacity and reliability. With 2 GB UDIMMs, a practical minimum is eight sticks (16 GB) to hold a modest dataset entirely in RAM. Configure all channels symmetrically to sustain memory bandwidth and use the ECC capability to guard against silent data corruption.
High-Performance Computing
HPC clusters built from older nodes can still handle throughput-oriented tasks. Populate every available channel with one matched 2 GB module to preserve uniform memory access across sockets. If the compute job fits within 4–6 GB per node, a balanced quad-channel or triple-channel setup delivers predictable latency for tightly coupled parallel processes.
Rigorously tested for server compatibility: Dell PowerEdge R210 II, HP ProLiant DL120 G7, etc.
Q: Can I mix this MT9JSF25672AZ-1G4F1 with other memory modules of different brands or speeds?
A: Mixing ECC UDIMMs from different brands or speeds is not recommended. It may force the memory controller to run at the slowest common speed and can cause signal integrity issues, compromising server stability.
Q: Is this memory compatible with my system?
A: This DDR3 ECC Unbuffered UDIMM is designed for single-socket server platforms. It typically supports Intel Xeon E3 series (e.g., C202/C204 chipsets) and equivalent AMD platforms requiring 1.5V, 240-pin ECC UDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Please consult your server's technical manual. Generally, populate identical DIMMs per channel, starting with slot 1 (often blue) furthest from the CPU, matching dual-channel configurations for balanced memory access.
Q: Does this module support overclocking or XMP profiles?
A: No, this is a server-grade ECC UDIMM. It operates exclusively at JEDEC standard DDR3-1333 with CL9 latency. XMP and overclocking are not supported, as stability and data integrity are prioritized.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Typical annualized failure rates for quality server ECC UDIMMs are very low, generally below 0.2%, ensuring dependable long-term operation under standard conditions.