SK HYNIX HMA851U6JURN-WM Sdram Dimm Server Memory 4GB DDR4 PC4-2933Y

( Brand: Sk Hynix ), ( Manufacturer Part Number: HMA851U6JURN-WM ), ( Form Factor: Dimm ), ( Type: Ddr4 Sdram ), ( Total Capacity: 4 Gb ), ( Number Of Pins: 288 ), ( Bus Speed: Pc4-2933y )

Review SK HYNIX 4gb Ddr4 Sdram Dimm Server Memory

The **SK Hynix HMA851U6JURN-WM 4GB DDR4 SDRAM PC4-2933Y DIMM Server Memory** is a high-performance, low-latency memory module engineered to deliver exceptional reliability and efficiency in enterprise-grade server environments. Part of SK Hynix s advanced **HBM (High Bandwidth Memory)** lineup, this **4GB single-rank, unbuffered (UDIMM) DDR4** module operates at a robust **2933 MHz** clock speed, translating to a **PC4-2933Y** data transfer rate of **23.33 GB/s**, making it ideal for workloads demanding high-speed data processing, such as virtualization, cloud computing, and high-performance database management. Designed with **ECC (Error-Correcting Code) support**, this module ensures data integrity by detecting and correcting single-bit errors on the fly, a critical feature for mission-critical applications where uptime and accuracy are non-negotiable.

Constructed with **SK Hynix s proprietary 16nm process technology**, the module incorporates **low-power, high-density DRAM chips** that optimize energy efficiency while maintaining peak performance, reducing operational costs in data centers. The **single-rank architecture** simplifies installation and reduces latency compared to multi-rank configurations, making it a seamless fit for servers requiring balanced speed and stability. Compatible with a wide range of **Intel Xeon and AMD EPYC** processors, this memory module adheres to **JEDEC standards**, ensuring broad server compatibility while supporting advanced features like **DOCP (DOCP 2.0)** for overclocking and **Intel Optane DC Persistent Memory** integration, where applicable. Its **288-pin DIMM form factor** ensures seamless integration into modern server motherboards, while the **WM (Workstation/Memory) variant** indicates optimized performance for both enterprise and workstation applications.

Built to withstand the rigors of 24/7 operation, the **HMA851U6JURN-WM** features **enhanced thermal management** with a **low-profile heat spreader** to dissipate heat efficiently, preventing throttling in high-density environments. The module s **1.2V voltage regulation** further enhances power efficiency, reducing heat generation and extending the lifespan of both the memory and the server hardware. Additionally, its **fully tested and certified** status ensures compliance with industry standards for reliability, making it a trusted choice for IT administrators seeking long-term stability. Whether deployed in **hyperscale data centers, financial trading systems, or AI/ML workloads**, this SK Hynix DDR4 module delivers a perfect blend of speed, endurance, and scalability, reinforcing its position as a premium solution for next-generation server infrastructure.

### **Pros and Cons of Buying SK Hynix HMA851U6JURN-WM (4GB DDR4 SDRAM PC4-2933Y DIMM Server Memory)**

1. **High Performance and Speed** The module operates at **2933 MHz (PC4-2933)**, which is faster than standard DDR4-2400, improving data transfer rates in server workloads. This is beneficial for applications requiring low latency, such as virtualization, database management, and high-frequency trading.

2. **Server-Grade Reliability** SK Hynix is a reputable manufacturer known for producing high-quality memory modules. This module is designed for **server and workstation use**, meaning it is built to withstand continuous operation, higher temperatures, and robust error correction (ECC support, if applicable).

3. **Low Latency** DDR4-2933 modules typically have **lower CL (CAS Latency)** compared to slower speeds, which can improve system responsiveness in memory-intensive tasks.

4. **Compatibility with Modern Servers** Many enterprise servers (e.g., Dell PowerEdge, HP ProLiant, Lenovo ThinkServer) support DDR4-2933, making this a versatile choice for upgrading existing systems.

5. **ECC Support (If Applicable)** While the exact model number does not explicitly state ECC, SK Hynix s server-grade memory is often ECC-capable. ECC memory is critical for servers to detect and correct data corruption, reducing downtime and improving data integrity.

6. **Energy Efficiency** DDR4 modules generally consume less power than older DDR3, which can contribute to lower operational costs in data centers.

7. **Future-Proofing** DDR4-2933 is a step above DDR4-2400, providing a performance boost that may extend the lifespan of a server before needing an upgrade to DDR5.

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1. **Higher Cost Compared to Lower-Speed DDR4** DDR4-2933 modules are typically **more expensive** than DDR4-2400 or DDR4-2133 versions. For budget-conscious deployments, this may not be justified unless performance is critical.

2. **Limited Availability of ECC Versions** If you specifically need **ECC memory**, you must verify whether this exact model supports it. Some SK Hynix server memory is non-ECC, which could be a drawback for mission-critical systems.

3. **Not All Servers Support DDR4-2933** Some older or budget servers may only support **DDR4-2400 or lower**, making this module incompatible. Always check the motherboard/BIOS specifications before purchasing.

4. **Heat and Power Considerations** Faster memory modules generate slightly more heat and draw more power, which may require additional cooling or power supply adjustments in densely packed server racks.

5. **Potential for Overkill in Non-Intensive Workloads** If the server is running **light workloads (e.g., file serving, basic web hosting)**, the performance gain from DDR4-2933 may not be noticeable, making it an unnecessary upgrade.

6. **Compatibility with Non-Server Platforms** While this is a **server-grade module**, it may not be compatible with **consumer motherboards** or non-ECC-capable systems, limiting its use to enterprise environments.

7. **Potential for Higher Failure Rates in Extreme Conditions** While SK Hynix memory is reliable, **extreme temperatures or poor power conditions** (e.g., unregulated voltage) could increase failure risks over time.

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### **Conclusion and Recommendation**

The **SK Hynix HMA851U6JURN-WM (4GB DDR4-2933)** is a **high-performance, server-grade memory module** that excels in environments requiring **low latency, high data throughput, and reliability**. It is an excellent choice for:

- **Virtualization hosts** (e.g., VMware, Hyper-V)

- **Database servers** (e.g., MySQL, PostgreSQL, Oracle)

- **High-frequency trading or financial systems**

- **Workstations running memory-intensive applications** (e.g., CAD, video editing, AI/ML workloads)

- The server runs **light workloads** where DDR4-2400 would suffice.

- The system **does not officially support DDR4-2933** (risk of instability).

- **ECC memory is not required** (non-ECC versions may be cheaper).

- The budget is tight, and **DDR4-2400 or DDR5 (if available) is a better long-term investment**.

- **Buy if:** You need **maximum performance in a server/workstation**, the system supports DDR4-2933, and reliability (ECC) is a priority.

- **Avoid if:** The workload is **non-intensive**, the server has **limited memory slots**, or you can find a **cheaper, equally fast ECC module** from another brand (e.g., Samsung, Micron).

- If **ECC is needed**, confirm the exact model supports it (some SK Hynix server memory is non-ECC).

- For **budget upgrades**, DDR4-2400 ECC may offer similar reliability at a lower cost.

- If **future-proofing**, consider **DDR5** (if your system supports it) for long-term scalability.

Would you like assistance in checking compatibility with a specific server model?

Details:

SK Hynix 4GB DDR4 SDRAM PC4-2933Y DIMM Server Memory HMA851U6JURN-WM.

part #: hma851u6jurn prices

• $79.99-$449.99

specifications servermemor:

• brand: Sk Hynix
• mpn: Hma851u6jurn-wm
• form factor: Dimm
• type: Ddr4 Sdram
• total capacity: 4 Gb
• number of pins: 288
• bus speed: Pc4-2933y

shipping servermemor:

• type: Calculated
• carrier: USPS
• class: Standard
• transit: 4-10 Days
• service: USPS Ground Advantage
• cost: $5.07

general servermemor:

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

returns servermemor:

• policy: No Returns

payments servermemor:

• other
• wallet: Apple-pay
• credit card: Discover

offer servermemor:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: March 20, 2026
• best offers: True
• quantity: 1

seller servermemor:

• # reviews: 0
• city: Englewood, Colorado
• rating: 0.0%

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