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Image for Crucial 2GB Kit (2 x 1GB) DDR2-800 UDIMM from Crucial UK GBP Store Organization

Crucial 2GB Kit (2 x 1GB) DDR2-800 UDIMM


  • Brand: Crucial
  • Form Factor: UDIMM
  • Total Capacity: 2GB kit (1GBx2)
  • Warranty: Limited Lifetime
  • Specs: DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 128Meg x 64 •
  • Series: Crucial
  • view all product details
    5 stars 328 reviews
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    • £28.79 inc. VAT*
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    Crucial 2GB Kit (2 x 1GB) DDR2-800 UDIMM

    product information

    Amount of available storage on the module. If there are parenthesis shown – for example (2 x 4GB) – it indicates a kit of 2 or more identical modules is used to reach the Total Capacity.
    Number of modules. Memory can be installed as single modules or in kits comprised of 2 or more identical modules. Each module requires its own slot for installation.
    Product Specifications
    Brand Crucial
    Form Factor UDIMM
    Total Capacity 2GB kit (1GBx2)
    Warranty Limited Lifetime
    Specs DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 128Meg x 64 •
    Series Crucial
    Kit Qty 2
    Speed 1066 MT/S
    Tracer False
    Voltage 1.8V
    Bullet Features Increases system performance
    DIMM Type Unbuffered
    More information

    240-pin DIMM

    A dual inline memory module (DIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The gold pins on the bottom of the DIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a DIMM are not connected to each other.

    240-pin DIMMs are used to provide DDR2 SDRAM memory for desktop computers. DDR2 is a leading-edge generation of memory with an improved architecture that allows it to transmit data very fast.

    Each 240-pin DIMM provides a 64-bit data path (72-bit for ECC or registered or Fully Buffered modules). (The Ballistix™ and Ballistix Tracer™ high-performance memory do not come in 72-bit or registered modules.)

    To use DDR2 memory, your system motherboard must have 240-pin DIMM slots and a DDR2-enabled chipset. A DDR2 SDRAM DIMM will not fit into a standard SDRAM DIMM socket or a DDR DIMM socket.

    The number of black components on a 240-pin DIMM can vary, but it always has 120 pins on the front and 120 pins on the back, for a total of 240. 240-pin DIMMs are approximately 5.25 inches long and 1.18 inches high, though the heights can vary. While 240-pin DDR2 DIMMs, 184-pin DDR DIMMs, and 168-pin DIMMs are approximately the same size, 240-pin DIMMs and 184-pin DIMMs have only one notch within the row of pins. The notch in a 240-pin DDR2 DIMM is closer toward the center of the module.

    product reviews

    OID: 79F6BCBBA5CA7304
    PR file path: /pwr/96v439cu/inline/08/43/79F6BCBBA5CA7304-en_GB-1-questions.html

    Do you have questions about this product?

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    get answers from real customers and in-house experts with AnswerBox.

    4 Questions | 5 Answers
    Displaying questions 1-4
    • Q:

      My Dell Inspiron 531 has in it 4 slots 2 slots with 1GB of memory and the other two with 512MB of memory. I operate Windows Vista Home edition 32 bit. If I purchase the 2GB kit ( 1GB x 2 ) Upgrade will I see any benefit in computer speed. I want to get more memory as Adobe Photoshop (my main reason for the computer) is asking for more memory.
      Asked on 11/22/2011 by Ted

      1 answer

      • Staff Reviewer


        If you have a 32bit operating system the maximum memory your system will see and use is between 3-3.5GB of memory. This means that you would have no benefit upgrading your system any further as you currently have 3GB installed.

        Answered on 11/23/2011 by Crucial Support from Meridian, Idaho
    • Q:

      At the moment I have 2x512mb memory modules I have ordered 2x 1gb modules (I have 4 slots available) do I install the new ones in place of the 2x512mb and then install these last or leave these two modules in place and put the 2x1gb modules last ? would it matter which way round I fit them ?
      Asked on 8/28/2011 by magpiemale from northamptonshire,england

      2 answers

      • Staff Reviewer


        You processor will address the primary slots in your system first - the slots where the original memory will be, which should be nearest the processor on the motherboard. It is therefore advisable to install the higher density modules (1GB) in these slots and then move your 512MB modules to slots 3 and 4.

        Answered on 8/30/2011 by Crucial Support from Meridian, Idaho



        Answered on 11/9/2011 by RAINBOW from CANTERBURY
    • Q:

      so if this product runs at the faster 800mhz compared to the lesser 667mhz of the same memory does that mean my computer will run faster with the 800mhz memory installed.Also useing the higher 800mhz would it have an adverse impact on the computer,as you have both memory's at the same price but one is faster than the other ?
      Asked on 8/28/2011 by magpiemale from northamptonshire,england

      1 answer

      • Staff Reviewer


        The faster module would only have a positive effect on the system in that it would give better performance. The modules are listed at the same price as they cost the same to manufacture so we do not need to sell it at a higher cost.

        Answered on 8/30/2011 by Crucial Support from Meridian, Idaho
    • Q:

      What is the difference between the 6400 and the lesser 5400 ?
      Asked on 7/12/2011 by Anonymous

      1 answer

      • Staff Reviewer


        The PC2-6400 is the faster of the two modules. PC2-5300 runs at 667MHz and the PC2-6400 runs at 800MHz.

        Answered on 7/14/2011 by Crucial Support from Meridian, Idaho
    Displaying questions 1-4

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