IBM 00D4957 4GB PC3-12800 Ram
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IBM 00D4957 4GB 2RX8 PC3-12800 DDR3-1600MHz Udimm Ecc Ram New

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Part Number#: 00D4957
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New Bulk Pack

Short Description:
IBM 00D4957 4GB 2RX8 PC3-12800 DDR3-1600MHz Udimm Ecc Ram | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

Product Overview of IBM 00D4957 4GB Memory

The IBM 00D4957 4GB 2RX8 PC3-12800 DDR3-1600MHz Udimm Ecc Ram is a high-performance memory module designed for use in computer systems. This RAM module has a capacity of 4GB and operates at a clock speed of 1600MHz. This article will explain the various features and specifications of this RAM module in detail.


The IBM 00D4957 RAM module has a capacity of 4GB. This capacity is suitable for most modern computer systems that require high-capacity memory. It allows the system to store a large amount of data, which can be accessed quickly.

Clock Speed

The RAM module operates at a clock speed of 1600MHz. This high clock speed allows the module to transfer data at a rate of 1.6 billion cycles per second. The clock speed determines how quickly the RAM module can access and transfer data. Thus, a higher clock speed means faster performance.

Form Factor

The IBM 00D4957 RAM module has a form factor of Unbuffered DIMM (Udimm). The Udimm form factor is a type of memory module used in desktop and small server systems. The Udimm form factor is commonly used in consumer-grade systems and provides a lower cost alternative to other form factors like Registered DIMMs (Rdimm).

ECC Support

The RAM module supports Error Correction Code (ECC). ECC is a method used to detect and correct errors in the memory system. ECC support is essential in enterprise-level systems where data integrity is critical. ECC support ensures that data stored in the memory module is accurate and free from errors.

Memory Architecture

The IBM 00D4957 RAM module uses a dual-rank architecture. This architecture means that the module has two sets of memory chips that can be accessed simultaneously. Dual-rank architecture allows the RAM module to handle more data in a shorter amount of time and provides faster performance compared to single-rank architecture.


The IBM 00D4957 RAM module is compatible with a range of computer systems. The RAM module is designed to work with IBM System x servers and is compatible with the IBM Flex System x240 M5, x240 M6, and x280 X6 servers. The RAM module is also compatible with other systems that use the Udimm form factor and support DDR3 memory.


The RAM module operates at a voltage of 1.5V, which is the standard voltage for DDR3 memory modules. Operating at a lower voltage can help reduce power consumption and lower operating temperatures, which can improve system stability and reliability.

CAS Latency

The IBM 00D4957 RAM module has a CAS latency of 11. CAS latency is the time delay between when a memory controller requests data from the RAM module and when the data is available. A lower CAS latency translates to faster performance. However, it is important to note that CAS latency alone does not determine the overall performance of a RAM module.

Summary, the IBM 00D4957 4GB 2RX8 PC3-12800 DDR3-1600MHz Udimm Ecc Ram is a high-performance memory module designed for use in computer systems. The module has a capacity of 4GB and operates at a clock speed of 1600MHz, providing fast and efficient performance. The Udimm form factor makes it suitable for use in consumer-grade systems, while ECC support ensures data integrity in enterprise-level systems. The RAM module is compatible with a range of computer systems and operates at a voltage of 1.5V, which helps reduce power consumption and lower operating temperatures. With its fast performance and reliability, the IBM 00D4957 RAM module is an excellent choice for those looking to upgrade their computer's

General Information

  • Manufacturer: IBM
  • Part Number or SKU# 00D4957
  • Type: Memory (RAM)
  • Sub-Type: PC3-12800
  • Product Name: 4GB DDR3 SDRAM Memory Module

Technical Information

  • Storage Capacity: 4 GB
  • Memory Technology: Ddr3 Sdram
  • Number of Modules: 1 X 4GB
  • Bus Speed: 1600 MHz Ddr3-1600/pc3-12800
  • Cas Latency: Cl11
  • Data Integrity Check: Ecc
  • Ram Features: Dual Rank, unbuffered

Physical Characteristics

  • Dimensions (W X D X H) : 8.89 X 19.81 X 1.91 Cm (3.5 X 7.8 X 0.75 In)
    Weight: 0.45 Kg (1 Lb)


  • IBM System X3100 M4
  • IBM System X3250 M4
  • IBM System X3250 M4 (2583)

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

PC3-12800 ram

The PC3-12800 RAM operates at a conventional voltage of 1.35V. It is generally regarded as a low power consumption memory module. One of its huge benefits remains that it is backward compatible with 1.5V. Depending on the capacity you require, we have a wide range of PC3-12800 240-Pin DDR3 SDRAM 1.35V SODIMM here on Feel free to choose from our categories including, 4GB, 8GB, 16GB, 32GB, 48GB, 64GB, 96GB, 128GB, 256GB, 192GB, and 512GB. All PC3 12800 memory modules on here offer blisteringly fast performance and are available at reasonable prices.

The PC3-12800 Memory Module

The 240-Pin DDR3 SDRAM is a top-tier memory module with an insane data rate. It features modern chipsets and processors from Intel and AMD that are now compatible with memory operating at 1600MT/s. The module classification of the DDR3-1600 memory is PC3-12800. This feature implies the module's peak data rate is 12.8GB/sec— 17% increase in memory bandwidth over DDR3-1333. Suppose you are a DIY professional or a power user looking for the most overclocking potential from your machine. In that case, the PC3 12800 memory will make a great addition to your arsenal. All PC3 12800 on features an eight-layer PCB design, specially-selected ICs, and meticulously tested to modern standards to provide top-notch stability and reliability when it matters.

Memory Clock Speed

The memory clock indicates how many cycles per second the memory makes. In other words, it is how many times per second data transfer takes place from VRAM to the GPU. The DDR3 SDRAM (PC3-12800 RAM) has a clock speed of 1066 MHz.

I/O bus clock

The input/output bus clock of the PC3 12800 memory is 800MHz. It is usually half the data bus rate.

Considerations Before Investing in a Memory Module

When it comes to memory, there are a handful of factors to consider before making any purchase decision. The more RAM available to the system's CPU, the easier its job becomes, enabling a faster computer. However, suppose you do not have a sufficient amount of RAM. In that case, your CPU has to work much harder during data transfer, severely reducing the computer's performance. In addition to the amount of RAM, here are other factors to consider before buying a RAM.

  • Memory Type

It is no longer news that just any memory module will not be compatible with your computer. Every computer comes with specific memory requirements depending on the motherboard's configuration and its particular memory type. It is needless to say that DDR3 memory will only work with motherboards with a DDR3 configuration. You should check your computer and its motherboard before picking a RAM for it.

  • DIMM Slots and Matched Pairs

The memory slots are dual inline memory connectors, regarded as DIMM slots, which stipulates that memory be installed as exact pairs in the right places. Should you be buying two memory sticks, ensure they are of the same frequencies. Paring two memory speeds of varying frequencies could lead to upgrade problems and low performance.

Purchase high-quality PC3-12800 memory modules of different sizes here on and enjoy free ground shipping to 48 states in the U.S. today.

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