CPU Upgrade for Dimension 8400

For Enterprise

For Enterprise
Technology, Solutions & Services to meet your Business Needs

CPU Upgrade for Dimension 8400

  • Hi,
    I think the chipset is 925X and was wondering what CPU this machine can go upto?
    Is it socket LGA775? will it take Dual Core CPU?
     
  • 8400 uses a 925X chipset, which doesn't support Dual Core CPUs. http://www.intel.com/products/chipsets/925x/index.htm

    The CPU socket is a LGA775. You can upgrade the CPU between 630-670 (3.0GHz-3.8GHz) Prescott 800Mhz. I wouldn't upgrade past a 640 (3.2GHz), because the 3.4GHz, 3.6GHz, and 3.8Ghz will cost between 280-620 dollars.

    If you're thinking of gaming, then I suggest Intel or AMD dual core CPUs.

      

     

  • Thanks, will the 3.8GHz CPU support 64-bit OS?

     

  • Yes, 630-670 support 64bit.
  • claytonb
     
    The D-8400 motherboard has either the Intel 925x or the 925xe chipset.
     
    Processor upgrade info, here,
     
     
    Bev.

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • The website does not mention the 925x supporting 670 only 672?

    The highest speed CPU I can find from suppliers in New Zealand is Intel part no. BX80547PG3800F, will this work ok? 

    http://www.ascent.co.nz/ProductSpecification.aspx?ItemID=338172

     

    Message Edited by claytonb on 05-21-200601:11 PM

  • claytonb
     
    To use the Intel 670 processor, as noted in your link, it would appear that you require a motherboad, with either a Intel 955/945G/945P/E2730 chipset.
     
     
     
    Bev.  

     

    If my answer was helpful, please use the 'Did this answer the question' and click: Yes
    Forum Member since 2001
    I am not employed by Dell

  • YouCanDoIt says I can use the 670 ? is that a mistake?
  • Per Intel the 925X chipset supports 670. Here's a extract of the following URL:
     
    "The Pentium 4 processor 500 sequence of processors is supported by the Intel® 925X, Intel® 925XE, 915 Express chipset family, Intel® 875P and Intel® 865 Express chipset family. The Pentium 4 processor 600 sequence of processors is supported by the Intel® 925X, Intel® 925XE, and Intel® 915 Express chipset family. The Pentium 4 processor Extreme Edition 3.73 GHz is supported by the Intel® 925XE Express chipset."
     
     
     
     
     
  • Sorry, I still carn't see where the 670 processor will work on the 925X chipset, I know the 660 does but if I want to go upto 3.8GHz I need to get the 672 processor.

    I know that site says the 925x will work with the 600 sequence of processors but I'm struggling to accept it for the 670

  • The difference between the 670 and 672 is... the 672 has the Intel Virtualization Technology.

    Please don't take my word, email Intel for a definitive answer.

    Over and Out

  • ok cheers

    Message Edited by claytonb on 05-25-200609:26 AM

  • Hey YouCanDoIt,

    Where did you get the info from that the 8400 can support the 670 Processor?

     

  • claytonb:

    Intel said the 925 supports the 600 series CPUs on their website, but they don't spell out each CPU. Remember, the 670 came out after the 925X chipset.

    Here's an answer from Intel:

    Thank you for contacting Intel(R) Technical Support.

    I understand that you want to know if the Intel(R) chipset 925X supports the Intel(R) Pentium(R) 4 processor 670.

    If you have an Intel(R) motherboard, the only Intel(R) Desktop motherboard from the 925 models that supports the Intel(R) Pentium(R) 4 processor 670 is the D925XHY as showing at the following website:

    http://www.intel.com/design/motherbd/hy/hy_proc.htm

    If you have a 3rd party motherboard with an Intel(R) 925X chipset, I would recommend you to contact the motherboard manufacturer for compatibility information, since the supported processors for each motherboard is not determined only by the chipset, but also by the BIOS and other motherboard components.

    Please do not hesitate to contact us again if you need further assistance.

    Sincerely,

    Adolfo S.

    Intel(R) Technical Support