HMA451U7AFR8N-TF Hynix 4GB PC4-17000 DDR4-2133MHz ECC Unbuffered CL15 288-Pin DIMM 1.2V Single Rank Memory Module

What does it mean if memory runs at 1.2v?

If memory runs at 1.2V, it means that the memory module operates at a voltage of 1.2 volts. The voltage specification is an important factor in determining the power requirements and compatibility of the memory with the system.

Memory modules running at 1.2V are commonly associated with DDR4 (Double Data Rate 4) memory technology. DDR4 was introduced as the successor to DDR3 and brought significant improvements in performance, energy efficiency, and data transfer rates.

The release of 1.2V memory modules, specifically DDR4 modules, was driven by major memory manufacturers, including Samsung, Micron, SK Hynix, and others. These manufacturers recognized the need for higher memory capacities, increased speed, and improved power efficiency to meet the evolving demands of computing systems.

The shift to 1.2V voltage in DDR4 modules was motivated by the industry's focus on energy efficiency and power savings. By operating at a lower voltage, DDR4 memory modules offered reduced power consumption and heat generation compared to their predecessors.

The lower voltage of 1.2V in DDR4 modules was chosen as a balance between performance and power efficiency. It allowed for improved data transfer rates and higher memory densities while minimizing power requirements and contributing to energy-conscious computing.

DDR4 memory modules running at 1.2V voltage became the standard for mainstream computer systems, including desktops, laptops, servers, and other computing platforms. They provided higher performance, increased memory capacities, and improved power efficiency compared to previous memory technologies.

It's important to note that compatibility with the system's memory controller and motherboard is essential when using 1.2V memory modules. The system's hardware should be designed to support and operate at this voltage to ensure proper functionality.

DDR4 memory, operating at 1.2V, revolutionized the memory landscape by offering improved efficiency and performance for a wide range of computing applications. Its introduction brought significant advancements to memory technology, catering to the growing demands of modern computing systems for faster, more power-efficient memory solutions.

What does it mean if memory has a rank of 1Rx8?

The term "1Rx8" refers to a specific type of memory module configuration, commonly used in server RAM (Random Access Memory) modules. Let's break down what each part of the term means:

• "1R": This indicates the rank of the memory module. A memory rank is a group of memory chips that are used together to store data. In this case, "1R" means there is only one rank on the memory module.
  
  
• "x8": This part refers to the organization of the memory chips on the module. In this case, "x8" means that each memory chip is 8 bits wide. The "x8" designation indicates that the memory chips are organized as single-bit-wide chips.

So, "1Rx8" means that the memory module has a single rank of memory chips, and each chip is 8 bits wide.

This type of memory configuration has been around for quite some time, and it was not a specific advancement in technology but rather a common way of organizing memory chips on a module. The use of 1Rx8 memory modules in servers and other computing systems is important for several reasons:

1. Density and Capacity: By using memory chips that are 8 bits wide, memory modules can be densely populated with chips, leading to higher memory capacity within a limited physical space. This is crucial in server environments where a large amount of RAM is needed to handle the demands of running multiple applications and services simultaneously.
   
   
2. Cost-Efficiency: The use of 8-bit-wide chips allows for more chips to be installed on a single module, which can help lower the cost per gigabyte of memory. This can be important for data centers and businesses looking to maximize their server performance while keeping costs under control.
   
   
3. Flexibility: Different memory configurations provide flexibility for system designers. By using 1Rx8 modules, system builders can configure memory subsystems that meet specific performance and capacity requirements.
   
   
4. Performance: While not necessarily an advancement in technology, the choice of memory configuration can impact memory performance and compatibility with the system's memory controller. Properly chosen memory configurations can contribute to better system performance and stability.

It's worth noting that memory technology has continued to evolve beyond the 1Rx8 configuration. Today, you'll find various memory configurations, such as 2Rx4, 2Rx8, 4Rx8, and more, each offering different trade-offs in terms of capacity, performance, and compatibility.

What does it mean if memory is DDR4?

DDR4, which stands for Double Data Rate 4th Generation, is a type of computer memory technology utilized in servers, desktops, and laptops. Its introduction occurred in 2014 as the successor to DDR3 memory.

DDR4 brought forth several crucial technological advancements compared to its predecessor:

1. Enhanced Data Transfer Rates: DDR4 offered increased data transfer rates, facilitating faster communication between the memory and the processor. This improvement resulted in heightened system performance and responsiveness.
   
   
2. Higher Memory Density: DDR4 introduced higher memory density, enabling more memory to be packed onto a single module. This expanded the maximum RAM capacity that could be installed in a system, accommodating larger memory requirements.
   
   
3. Reduced Power Consumption: DDR4 memory modules operated at lower voltage levels compared to DDR3. This reduction in voltage led to decreased power consumption, thereby improving energy efficiency and prolonging battery life, especially in mobile devices.
   
   
4. Improved Error Correction: DDR4 implemented superior error correction capabilities, enhancing the reliability and stability of the memory subsystem. This advancement was particularly critical for servers and systems that necessitate stringent data integrity.
   
   
5. Future-Proofing: DDR4 laid the groundwork for future memory technologies and advancements. It offered scalability and compatibility with evolving processor architectures, ensuring seamless system upgrades and adaptability to future applications and technologies.

In summary, DDR4 represented a significant leap in memory technology, delivering faster speeds, larger capacities, improved power efficiency, and heightened reliability compared to its predecessors. These advancements contributed to enhanced overall system performance and addressed the escalating demands of modern computing applications.

What does it mean if memory has a form factor of UDIMM?

If memory has a form factor of UDIMM, it means that it is designed according to the Unbuffered Dual In-Line Memory Module standard. UDIMM is a type of memory module that does not incorporate a register (or buffer) between the memory controller and the memory chips.

UDIMM modules are simpler in design compared to RDIMM modules. They directly connect the memory chips to the memory controller without the intermediate register. UDIMMs are commonly used in consumer-grade computers and systems where large memory configurations are not required.

UDIMM memory modules were introduced in the late 1980s and early 1990s as a successor to the previous memory module form factors, such as SIMM (Single In-Line Memory Module). The specific manufacturer responsible for the release of UDIMM modules may vary, as multiple memory manufacturers adopted and produced UDIMMs.

UDIMMs offer simplicity and lower cost compared to buffered memory modules like RDIMMs. They are well-suited for personal computers, desktops, and other systems that do not have extensive memory expansion requirements. UDIMMs are commonly used in home computers, gaming systems, and small office setups.

However, it's important to note that UDIMMs have limitations in terms of memory capacity and the number of modules that can be used simultaneously. As they lack the register found in RDIMMs, UDIMMs may have restrictions on the maximum memory capacity per module and the overall memory capacity of a system.

UDIMMs continue to be widely used in consumer computing applications where cost-effectiveness and simplicity are prioritized. They provide a reliable and affordable memory solution for everyday computing needs without the need for extensive memory expansion capabilities.