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Image for Crucial 1GB Kit (2 x 512MB) DDR-400 UDIMM from Crucial UK GBP Store Organization

Crucial 1GB Kit (2 x 512MB) DDR-400 UDIMM


  • Brand: Crucial
  • Form Factor: UDIMM
  • Total Capacity: 1GB kit (512MBx2)
  • Warranty: Limited Lifetime
  • Specs: DDR PC3200 • CL=3 • Unbuffered • NON-ECC • DDR400 • 2.6V • 64Meg x 64 •
  • Series: Crucial
  • view all product details
    5 stars 126 reviews
    out of stock
    • £31.19 inc. VAT*
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    Crucial 1GB Kit (2 x 512MB) DDR-400 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 1GB kit (512MBx2)
    Warranty Limited Lifetime
    Specs DDR PC3200 • CL=3 • Unbuffered • NON-ECC • DDR400 • 2.6V • 64Meg x 64 •
    Series Crucial
    Kit Qty 2
    Speed 1066 MT/S
    Tracer False
    Voltage 2.6V
    Bullet Features Increases system performance
    DIMM Type Unbuffered
    More information

    184-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.

    184-pin DIMMs are used to provide DDR SDRAM memory for desktop computers. Standard 184-pin DIMMs are available in PC1600 DDR SDRAM, PC2100 DDR SDRAM, PC2700 DDR SDRAM, and PC3200 DDR SDRAM.

    To use DDR memory, your system motherboard must have 184-pin DIMM slots and a DDR-enabled chipset. A DDR SDRAM DIMM will not fit into a standard SDRAM DIMM socket. (Information about which memory technology your system uses is included in the Crucial Memory Advisor™ tool.)

    The number of black components on a 184-pin DIMM can vary, but it always has 92 pins on the front and 92 pins on the back, for a total of 184. 184-pin DIMMs are approximately 5.25 inches long and 1.25 inches high, though the heights can vary. While 184-pin DIMMs and 168-pin DIMMs are approximately the same size, 184-pin DIMMs have only one notch within the row of pins.

    product reviews

    OID: B8B4CF11A5CA7304
    PR file path: /pwr/96v439cu/inline/01/86/B8B4CF11A5CA7304-en_GB-1-questions.html

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    3 Questions | 3 Answers
    Displaying questions 1-3
    • Q:

      Could you please tell me ? Is this a matched pair as per your recomendations
      Asked on 10/18/2011 by Anonymous

      1 answer

      • Staff Reviewer


        Yes, any kit of 2 modules on our site is a matched pair. The one you refer to is 2 x 512MB modules.

        Answered on 10/19/2011 by Crucial Support from Meridian, Idaho
    • Q:

      I have just purchased the above kit and am unsure of the voltage I should set in my BIOS as some DDR Memory requires 2.6V and some 2.5V.
      I would appreciate your advice on this matter.
      Eric Athroll
      Asked on 6/7/2011 by EricG

      1 answer

      • Staff Reviewer


        For this module, simply leave your voltage setting to auto, or the default. You should not need to change anything in your BIOS.

        Answered on 6/15/2011 by Crucial Support from Meridian, Idaho
    • Q:

      Hi. Are these modules single-sided, and will they support Dual Channel mode?
      Asked on 5/19/2011 by Horsetan from London, UK

      1 answer

      • Staff Reviewer


        These modules come both single and double-sided. Dual-channel refers to computer motherboards that handle memory processing more efficiently by using the bandwidth of two memory modules. Most dual-channel systems will operate without matched memory module pairs installed, but dual-channel systems perform best when memory modules are installed in matched pairs. Check your manual for exact specifications. For further details on dual-channel platforms, please visit our FAQs at

        Answered on 5/19/2011 by Crucial Support from Meridian, Idaho
    Displaying questions 1-3

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