MICRON 03KL460 Lenovo Ecc Rdimm Fru 32GB 1X DDR5 4800MHZ CL40 1RX4 SM37B27363

( Brand: Micron ), ( Manufacturer Part Number: 03KL460 ), ( Total Capacity: 32 Gb ), ( Memory Features: Ecc Memory, Registered ), ( Form Factor: Rdimm ), ( Type: Ddr5 Ecc Rdimm ), ( Unit Type: Stick ), ( Number Of Pins: 288 ), ( Bus Speed: Pc5-38400 ), ( Country Of Origin: Malaysia )

Review MICRON Lenovo 1x Ecc Rdimm 4800mhz 1rx4 Fru

The **Micron 03KL460 32GB DDR5 ECC RDIMM** is a high-performance, enterprise-grade memory module designed to deliver exceptional reliability, speed, and scalability for demanding server and workstation environments. Part of Lenovo s **SM37B27363** compatible lineup, this **1Rx4** (single-rank, four-channel) module operates at an aggressive **4800MHz** clock speed, ensuring blazing-fast data transfer rates ideal for CPU-intensive workloads such as virtualization, AI/ML processing, high-performance computing (HPC), and large-scale database management. Engineered with **DDR5 technology**, it leverages advanced memory architecture to enhance bandwidth efficiency while reducing power consumption compared to previous generations, making it a cost-effective yet high-performance solution for modern infrastructure.

Built with **ECC (Error-Correcting Code) memory**, this module provides critical data integrity protection by detecting and correcting single-bit errors on the fly, minimizing downtime and ensuring mission-critical applications remain stable under heavy loads. The **32GB capacity** strikes a balance between performance and cost, offering substantial memory expansion without excessive overhead, making it well-suited for systems requiring moderate to high memory density. The **RDIMM (Registered DIMM) configuration** further enhances stability by buffering signals between the memory controller and the DIMM, reducing electromagnetic interference and improving signal integrity in high-channel-count server setups.

The **CL40 (CAS Latency 40) timing** reflects a carefully optimized balance between speed and stability, ensuring smooth operation across a wide range of server workloads while maintaining compatibility with Lenovo s **ThinkSystem** and other enterprise-grade platforms. As a **1Rx4 module**, it occupies a single memory slot while supporting four channels of data transfer, maximizing memory bandwidth without requiring additional slots. This design simplifies installation in systems with limited slot availability while still delivering near-maximum performance.

Designed with **Fru (Field Replaceable Unit) compatibility**, this module adheres to Lenovo s **SM37B27363** part number, ensuring seamless integration with supported servers such as the **ThinkSystem SR650, SR670, or SR685** models, among others. The **Micron brand** guarantees high-quality manufacturing, rigorous testing, and long-term availability, making it a trusted choice for IT administrators seeking reliable, future-proof memory solutions. Whether deployed in a data center, cloud infrastructure, or high-end workstation, this module delivers the speed, endurance, and reliability required to handle today s most demanding computational tasks with confidence.

### **Pros and Cons of buying a Micron 03KL460 (Lenovo 1X 32GB DDR5 ECC RDIMM 4800MHz CL40 1Rx4 FRU SM37B27363)**

1. **High Capacity and Performance** This is a **32GB DDR5 RDIMM module**, offering substantial memory capacity for high-end workstations, servers, or demanding workloads. DDR5 provides faster data transfer rates compared to DDR4, improving overall system efficiency.

2. **ECC Support** The module includes **Error-Correcting Code (ECC)**, which helps prevent data corruption by detecting and correcting single-bit errors. This is critical for servers, databases, and applications requiring data integrity (e.g., virtualization, financial systems, or scientific computing).

3. **Registered (RDIMM) Design** RDIMMs are optimized for multi-channel server systems, reducing power consumption and improving stability in high-memory configurations. They are a common choice for enterprise-grade hardware.

4. **Compatibility with Lenovo Servers** This module is **FRU (Field Replaceable Unit) certified for Lenovo servers**, meaning it is officially supported and tested for use in compatible systems (e.g., ThinkSystem servers, NeXtScale, or other Lenovo enterprise platforms). This reduces the risk of compatibility issues.

5. **4800MHz Speed with CL40** While DDR5 speeds vary, this module operates at **4800MHz with a CAS latency of CL40**, which is competitive for server-grade memory. However, actual performance depends on the motherboard s memory controller and chipset support.

6. **Single-Rank (1Rx4) Configuration** Being a **single-rank module**, it may offer slightly better performance in some workloads compared to dual-rank (2Rx4) modules, though this depends on the system s memory controller.

7. **FRU Compatibility Ensures Easy Replacement** Since it is an FRU part, it can be easily swapped in the field without requiring reconfiguration, which is useful for maintenance and upgrades.

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1. **High Cost** DDR5 ECC RDIMMs are significantly more expensive than consumer-grade DDR4 or even non-ECC DDR5 modules. For a **32GB module**, the price can be **2-3 times higher** than a comparable DDR4 module, making it a substantial investment.

2. **Limited Consumer Use Case** While this module is excellent for **servers, workstations, and enterprise applications**, it is **not necessary for gaming PCs, budget builds, or most consumer laptops**. Overkill for non-professional use.

3. **DDR5 Compatibility Requirements** Not all systems support DDR5. This module **only works in motherboards/chassis with DDR5 slots** (e.g., high-end Lenovo servers, some workstations, or newer enterprise hardware). Older systems (DDR4-based) will not accept it.

4. **Power Consumption** DDR5 modules generally consume more power than DDR4, which may impact cooling and power supply requirements in some systems.

5. **Potential Overkill for Some Workloads** If you are running **lightweight applications (web browsing, office work, light gaming)**, this module is **far more than needed**. The performance gains may not justify the cost.

6. **Vendor Lock-In (Lenovo FRU)** While FRU compatibility is a pro, it also means this module is **exclusively designed for Lenovo systems**. If you later switch to a non-Lenovo server, you may need to replace it with a compatible alternative.

7. **CL40 Latency May Not Be Optimal for All Systems** A **CAS latency of CL40** is decent but not the fastest available (some server modules offer CL32 or lower). Performance gains from lower latency may be minimal in some workloads, especially if the CPU bottleneck is more significant.

8. **Availability and Lead Times** High-end server memory can sometimes have **long lead times** due to demand and supply chain issues, which may delay upgrades.

---

The **Micron 03KL460 (32GB DDR5 ECC RDIMM 4800MHz CL40)** is an **excellent choice for enterprise environments, servers, workstations, or high-performance computing (HPC) setups** where **reliability, data integrity, and scalability** are critical. Its **ECC support, registered design, and Lenovo FRU compatibility** make it a robust solution for professional use.

However, for **consumer-grade PCs, gaming, or budget builds**, this module is **overkill and unnecessarily expensive**. If you are not running **servers, virtualization, databases, or heavy workloads**, you would be better off with **lower-cost DDR4 or non-ECC DDR5 modules**.

- You are upgrading a **Lenovo server or workstation** (e.g., ThinkSystem, NeXtScale).

- You need **high-capacity, low-latency memory for enterprise applications** (virtualization, databases, AI/ML, scientific computing).

- Data integrity is **critical**, and ECC is a **must-have**.

- You are building a **high-end workstation** for professional use (video editing, 3D rendering, CAD).

- You are building a **gaming PC, budget system, or consumer laptop**.

- Your system **does not support DDR5** (check motherboard manual).

- You are on a **tight budget** and do not need ECC or server-grade performance.

- You plan to **mix vendors** (non-Lenovo systems) and want flexibility.

For most **non-enterprise users**, a **lower-cost DDR4 or non-ECC DDR5 module** (if DDR5 is required) would be a more practical choice. However, if you are in a **server environment or need maximum reliability**, this Micron module is a **solid, high-quality investment**.

Details:

Free UPS Ground Shipping. Please see the item specifics for exact part numbers. Micron PN: MTC18F1045S1PC48BA2 NGCC. Genuine Lenovo sticks.

Lenovo PN: SM37B27363. Micron Lenovo 1x 32GB DDR5 ECC RDIMM 4800MHz CL40 1Rx4 FRU 03KL460 SM37B27363, Lightly used, working pull from a fully functional P8 system.

part #: 03kl460 prices

• $95.00-$499.00

specifications servermemor:

• brand: Micron
• mpn: 03kl460
• total capacity: 32 Gb
• memory features: Ecc Memory, Registered
• form factor: Rdimm
• type: Ddr5 Ecc Rdimm
• unit type: Stick
• number of pins: 288
• bus speed: Pc5-38400
• country of origin: Malaysia

returns servermemor:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted
• method: Money back

payments servermemor:

• other
• wallet: Google-pay
• credit card: Mastercard

shipping servermemor:

• service: UPS Ground
• class: Standard
• carrier: UPS
• type: Fixed
• transit: 4-10 Days
• cost: $0.00

offer servermemor:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: May 4, 2026

general servermemor:

• condition: Used
• Enterprise Networking, Servers > Server Components > Server Memory RAM

seller servermemor:

• rating: 99.9%
• # reviews: 41294
• city: Terryville, Connecticut

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