4GB Memory Kit (2x2GB DIMM) Image

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4GB Memory Kit (2x2GB DIMM)

  • Part Number : X7802A
  • Brand : Samsung

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Samsung X7802A Form Factor
Form Factor
DIMM
Samsung X7802A Capacity
Capacity
4GB
Samsung X7802A Memory Speed
Memory Speed
533 MHz
Samsung X7802A Pins
Pins
240 Pin
Samsung X7802A Workload
Workload
Enterprise (ENT)

Full Samsung X7802A Specifications

Form Factor DIMM
Capacity 4GB
Memory Speed 533 MHz
Data Integrity Check ECC
Latency Timing CL4
Pins 240 Pin
Memory Technology DDR2
Workload Enterprise (ENT)

Samsung X7802A Frequently Asked Questions

What does it mean if memory is ECC?

ECC, which stands for Error-Correcting Code, refers to a type of memory module that incorporates advanced error-checking and error-correction capabilities. ECC memory goes beyond standard non-ECC memory by providing additional measures to ensure data integrity.

The primary purpose of ECC memory is to detect and correct certain types of data errors that may occur during the operation of a computer system. It achieves this by adding extra bits, known as parity or checksum bits, to each memory word stored in the module.

These extra bits enable the ECC mechanism to identify and automatically correct single-bit errors. If a single bit is flipped or corrupted, the ECC memory can detect the error and rectify it, preventing potential data corruption and maintaining accurate information storage.

ECC memory is particularly prevalent in critical computing systems, such as servers and workstations, as well as in environments where data integrity is paramount, such as scientific or financial applications. By providing an additional layer of error detection and correction, ECC memory significantly reduces the risk of undetected errors that could lead to system crashes, data corruption, or inaccurate calculations.

It's important to note that the utilization of ECC memory requires support from both the motherboard and the memory controller in the system. Not all systems or consumer-grade motherboards offer compatibility with ECC memory, so it's crucial to verify the specifications and requirements before incorporating ECC memory modules into a specific system.

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

DIMM stands for Dual In-Line Memory Module. It is a type of memory module used in computers to provide random access memory (RAM). DIMMs are rectangular circuit boards that contain multiple memory chips and have electrical contacts on both sides. They are designed to be inserted into a computer's motherboard, connecting to the memory slots.


DIMM memory modules were first released in the late 1980s and gained widespread adoption in the 1990s. They replaced the older SIMM (Single In-Line Memory Module) technology, which had a single row of electrical contacts. DIMMs offered several important advancements over SIMMs:


  1. Increased capacity: DIMMs allowed for a greater number of memory chips to be installed on a single module, thus increasing the overall capacity of RAM that a computer could support. This enabled computers to handle more demanding applications and perform tasks more efficiently.

  2. Improved data transfer rates: DIMMs supported higher data transfer rates compared to SIMMs. This increase in speed allowed for faster communication between the RAM and the computer's processor, resulting in improved overall system performance.

  3. Enhanced error correction and reliability: DIMM modules introduced error-correcting code (ECC) capabilities, which helped detect and correct memory errors. This was crucial for critical computing environments, such as servers, where data integrity and reliability are paramount.

  4. Compatibility and scalability: DIMMs offered greater flexibility in terms of compatibility and expandability. They could be used across a wide range of computer systems, allowing for easy upgrades and replacement of memory modules as technology advanced.


Overall, the introduction of DIMM technology represented a significant advancement in computer memory. It provided higher capacity, increased speed, improved reliability, and greater compatibility, all of which contributed to enhanced system performance and efficiency. DIMMs have continued to evolve over the years, with various iterations and advancements, such as DDR (Double Data Rate) and its subsequent generations, further improving memory capabilities in modern computer systems.

What does it mean if memory has a latency of CL4?

In the context of server RAM (Random Access Memory), the term "CL4" refers to the CAS Latency (Column Address Strobe Latency) of the memory module. CAS Latency is a measure of the delay between the moment a memory controller requests data from memory and when the data is actually available to be accessed. It's often expressed as a number followed by "CL," such as CL4, CL5, CL6, and so on. The lower the CAS Latency, the better the performance, as lower latency allows for quicker data retrieval.

A CAS Latency of CL4 means that it takes the memory module approximately 4 clock cycles to provide requested data after the memory controller initiates a read operation.

It's important to note that CAS Latency is just one aspect of memory performance, and while a lower CAS Latency generally indicates better performance, other factors like memory speed (measured in megahertz or MHz) and memory timings also contribute to overall memory performance.

As for when memory with CL4 was released, this information can vary based on the specific generation of memory technology. Different generations of RAM (DDR, DDR2, DDR3, DDR4, etc.) have different performance specifications, and advancements in technology have led to improvements in terms of speed, latency, and efficiency.

For example, DDR4 memory, which is commonly used in servers and high-performance computing, typically operates at higher speeds and lower latencies compared to its predecessors. DDR4 modules with CL4 latency might have been released in the early stages of DDR4 technology, likely around the mid to late 2010s.

The advancement to lower CAS Latency, such as CL4, is important for several reasons:

  1. Improved Performance: Lower CAS Latency means quicker data access, which can lead to better overall system performance, especially in applications that require frequent memory access, like servers and high-performance computing.

  2. Reduced Latency: Lower latency contributes to reduced delays in data processing, which is particularly crucial in time-sensitive applications such as real-time data analysis and financial trading.

  3. Enhanced Workloads: Certain workloads, such as virtualization, database management, and scientific simulations, can benefit significantly from lower memory latencies, as these tasks involve substantial memory access operations.

  4. Future-Proofing: As technology advances, software becomes more demanding, and servers need to handle more complex workloads. Having memory modules with lower latency helps ensure that the server can handle these advancements effectively.

In summary, CL4 refers to a CAS Latency of 4 clock cycles in server RAM modules. This specification indicates faster data access and improved overall performance, making it an important advancement in server technology, particularly in applications that require quick and efficient memory operations.

What does it mean if memory is 240 pin?

If memory is specified as "240 pin," it refers to the physical design and configuration of the memory module.

A 240-pin memory module is commonly associated with DDR2 and DDR3 memory standards. This pin count indicates the number of pins on the module's connector that is used for communication and electrical connections with the motherboard.

The 240-pin configuration is primarily used for DIMMs (Dual In-Line Memory Modules) in desktop and consumer-level systems. These modules are designed to fit into the memory slots on the motherboard.

The pin count determines the compatibility and functionality of the memory module with the corresponding motherboard. In the case of 240-pin memory modules, they are designed to work with systems that support DDR2 or DDR3 memory technology.

It's worth noting that different memory standards and generations, such as DDR4 or future standards, may have different pin counts. However, in the case of a 240-pin memory module, it is commonly associated with DDR2 or DDR3 memory technology used in desktop systems.

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