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    CPU-Z data different from specs...

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by sikidhart, Sep 15, 2008.

  1. sikidhart

    sikidhart Notebook Consultant

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    I bought a new notebook with the following specs:
    Intel®Core™2 Duo P9500 2.53GHz 6MB L2 Cache
    4GB DDR2 SO-DIMM PC6400(FSB800MHz, 2GB×2)

    However when I ran CPU-Z, here's what I got:
    Name: Intel Mobile Core2Duo T9400
    Code Name: Penryn
    but the Specification says:
    Intel®Core™2 Duo CPU P9500 @ 2.53GHz

    weird...

    As for the memory:
    I went to the SPD tab and checked maxed bandwidth
    PC2-6400 (400MHz)

    is this normal? is this what I was supposed to get? did I get screwed?

    Thanks!!
     
  2. emike09

    emike09 Overclocking Champion

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    Mine also reports the T9400. The only difference between the T9400 and our P9500 processors is the fact that ours is voltaged lower and running at 25w, vs the 35w from the T9400. CPU-Z just hasn't been updated to fully recognize the Centrino 2 Montevina Cores. There is nothing to worry about

    As far as your memory at 400MHz, that is the true speed of the memory. However, since the memory is dual pumped, hence the DDR = Double Data Rate. You also have Dual Channel memory, which means it can read and write on both the up and down cycles. Nothing to worry about there either.
     
  3. flipfire

    flipfire Moderately Boss

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    CPU-z hasnt updated information for newer processors. They are slow when it comes to notebooks cpu's
     
  4. powerpack

    powerpack Notebook Prophet

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    Mike said it all correct except dual channel has nothing to do at this point so might confuse. 400Mhz DDR= 800Mhz.

    And Mike it is the DDR that allows the speed increase on the RAM by using the rising and falling edges of the clock signal.

    Not Dual Channel. It increases the channels 2 64bit vs 1 it is not double pumping per se.
     
  5. emike09

    emike09 Overclocking Champion

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    I agree with that. Dual-channel controllers use two 64-bit data channels, resulting in a total bandwidth of 128-bits, to move data from RAM to the CPU.
     
  6. Andy

    Andy Notebook Prophet

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    DDR double pumps data as compared to SDRAM.

    In DDR2, the bus is clocked at twice the speed of the memory cells....

    So, Memory Clock = 200MHz, Bus Clock is 400MHz, and Data Transfer Rate is 800MHz (<--Due to double pumping).