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Image for Crucial 4GB Kit (2 x 2GB) DDR2-800 UDIMM from Crucial USA

Crucial 4GB Kit (2 x 2GB) DDR2-800 UDIMM

  • Upgrade for: Intel DG41RQ
  • Crucial part number: CT921478
  • Brand: Crucial
  • Form Factor: UDIMM
  • Total Capacity: 4GB kit (2GBx2)
  • Warranty: Limited Lifetime
  • Specs: DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 256Meg x 64 •
  • Series: Crucial
  • view all product details
    5 stars 684 reviews
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    • $57.99
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    This part is compatible! view all compatible parts

    DG41RQ

    installation guides

    Notes about your system:

    Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules.

    Your Intel DG41RQ

    system specs as shipped

    memory

    • Max Unbuffered DDR2 SDRAM:8GB
    • Slots:2 (2 banks of 1)
    *Not to exceed manufacturer supported memory.
    what does this mean?
    Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.

    storage

    • Storage: SATA 2 - 3Gb/s
    what does this mean?
    Storage drives -- hard drives and solid state drives -- are the permanent memory for the programs and documents on your computer.

    Chipset

    • Chipset: Intel G41
    what does this mean?
    Chipset is a set of integrated circuits that have a specific purpose in a computer system, a group of microchips used together to perform a single task.

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    you may also be interested in:

    Crucial 4GB Kit (2 x 2GB) 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 4GB kit (2GBx2)
    Warranty Limited Lifetime
    Specs DDR2 PC2-6400 • CL=6 • Unbuffered • NON-ECC • DDR2-800 • 1.8V • 256Meg x 64 •
    Series Crucial
    ECC NON-ECC
    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: 03BB4DE4A5CA7304
    PR file path: /pwr/96v439cu/inline/07/77/03BB4DE4A5CA7304-en_US-1-questions.html

    Do you have questions about this product?

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

    10 Questions | 9 Answers
    Displaying questions 1-10
    • Q:

      what does CL=5 / CL=6 mean?
      Asked on 10/9/2011 by infoman from washington

      1 answer

      • Staff Reviewer

        A:

        CL refers to the Cas Latency of a module and tells us how many clock cycles pass between data being transferred. The higher the CL the more clock cycles pass. This feature is not as important as the amount of RAM installed and the speed of the RAM.

        Answered on 10/11/2011 by Crucial Support from Meridian, Idaho
    • Q:

      is there support for Serial Presence Detect (SPD)
      Asked on 9/4/2011 by Jeff

      1 answer

      • Staff Reviewer

        A:

        Serial Presence Detect (SPD) is a memory hardware feature that makes it possible for the computer to know what memory is present, and what timings to use to access the memory.

        In order for a memory module to support SPD, the JEDEC standards require certain parameters to be placed in the lower 128 bytes of an EEPROM located on the memory module (the SPD chip). These bytes contain timing parameters, manufacturer, serial number and other useful information about the module.
        The BIOS uses this information to determine what speed and timings to run the memory at. It is also possible to enter the BIOS and manually improve these speeds and timings, this is called overclocking.
        As the memory modules may not support tighter timings, overclocking can lead to crashes and system failure. It can also reduce the lifetime of the modules as they often run at higher voltages and therefore higher temperatures than they were designed for.

        Answered on 9/5/2011 by Crucial Support from Meridian, Idaho
    • Q:

      does this memory module support serial presence detect (SPD)data structure?
      Asked on 8/4/2011 by neal from houston, tx

      0 answers

    • Q:

      What is the difference between DDR2 PC2-6400 and DDR2 PC2-8500 memory modules?
      Asked on 8/3/2011 by Anonymous

      1 answer

      • Staff Reviewer

        A:

        PC2-8500 RAM is simply the faster of the two speeds

        Answered on 8/4/2011 by Crucial Support from Meridian, Idaho
    • Q:

      my emachine EL1300G-01W has only one slot for RAM. If I buy this 4GB kit will I pull out the 2gb card and put in this new card?
      Asked on 7/6/2011 by MIke from Portland Oregon

      1 answer

      • Staff Reviewer

        A:

        This system should have 2 memory slots according to our records. If however you only have one slot then you would need to purchase a single 2GB module instead of a kit as this comprises of two modules.
        If you need any more assistance then please call our technical support team: http://www.crucial.com/contact/

        Answered on 7/7/2011 by Crucial Support from Meridian, Idaho
    • Q:

      Hi,

      Is this compatible with Dell Optiplex 740?
      This looks like having the exact same spec.

      Thank you.
      Asked on 7/2/2011 by holala from WA

      1 answer

      • Staff Reviewer

        A:

        Yes, this memory kit will be fully compatible with the Optiplex 740.

        Answered on 7/4/2011 by Crucial Support from Meridian, Idaho
    • Q:

      Hi my board supports both pc2-6400 and pc2-5300 , what is the difference between the 2 ? speed ? reliability ? overclocking ? I havent been keeping up with all the newer technology , and doubt I would overclock anyways . I do want the highest speed and reliability and any help would be appreciated , thanks .
      Asked on 6/11/2011 by Simz49 from Port Richey , FL

      1 answer

      • Staff Reviewer

        A:

        The difference is in the frequency. PC2-6400 runs at 800MHz and PC2-5300 runs at 667MHz. Both speeds are compatible with your motherboard.

        Answered on 6/17/2011 by Crucial Support from Meridian, Idaho
    • Q:

      can i use this memory type for my Dell Dimension 8250 desktop?
      Asked on 6/10/2011 by sang from anaheim, california, us

      1 answer

      • Staff Reviewer

        A:

        No, unfortunately not. Your computer uses RDRAM, also known as Rambus(R) memory, on 184-pin RIMMs. Unfortunately, Crucial does not carry RDRAM. For further information on Rambus(R) RDRAM, please visit our FAQs at http://www.crucial.com/kb/answer.aspx?qid=3531

        Answered on 6/16/2011 by Crucial Support from Meridian, Idaho
    • Q:

      who manufactures this product? what series? what model? and Type?
      Asked on 4/22/2011 by Anonymous

      1 answer

    • Q:

      If I want to replace a defective memory card and upgrade should I buy 2 of these sets so I'm replacing all 4 cards at once? For the price that seems to be the way to go.
      Asked on 4/14/2011 by Bob from Cedarburg, WI

      1 answer

      • Staff Reviewer

        A:

        For best performance, you do want to install in matched pairs. If you are wanting to max the system memory, and run at best performance for your RAM, installing two of these kits would be the best way to go.

        Answered on 4/22/2011 by Crucial Support from Meridian, Idaho
    Displaying questions 1-10

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