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    CPUIDz shows incorrect CPU & Memory Speed

    Discussion in 'Alienware' started by findvikas, Aug 17, 2008.

  1. findvikas

    findvikas Notebook Deity

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    or may be I am reading them incorrectly... please have a look at the attached image.

    I am running a T9300 (2.5GHz) and Crucial DDR2 2x2GB 667MHz kit ( http://www.newegg.com/Product/Product.aspx?Item=N82E16820148201)

    But CPUID shows incorrect information, is it normal or my RAM running downclocked. How can i fix it ?

    I am on Vista Ultimate 64bit
     

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    findvikas, Aug 17, 2008
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  2. exiled

    exiled -_-

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    speed step downclocks the processor when its not in use. clocks go back when it is in use.
     
    exiled, Aug 17, 2008
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  3. Andy

    Andy Notebook Prophet

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    Thats the EIST (SpeedStep) kicking in. (Check the multiplier=8) - Check out RMClock.

    The 965 chipset supports RAM frequencies upto 667MHz, so the PC2-6400 has downclocked to PC2-5300.
     
    Andy, Aug 17, 2008
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  4. t2ppp124

    t2ppp124 Notebook Consultant

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    Dont worry bout it you must have it in stealth mode old boy, it always clocks to exactly that when activated :)
     
    t2ppp124, Aug 17, 2008
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  5. findvikas

    findvikas Notebook Deity

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    ahh.. I see... yeah I was running in stealth mode so now I fixed my CPU speed. But RAM still shows as PC6400 (400MHz) ?? How to get that fixed?
     
    findvikas, Aug 17, 2008
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  6. flipfire

    flipfire Moderately Boss

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    Its running correctly.

    333mhz x DDR (dual data rate) = 667mhz

    You have the Santa Rosa platform which supports up to 667mhz maximum.

    Though your RAM seems to support up to 800mhz
     
    flipfire, Aug 17, 2008
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  7. t2ppp124

    t2ppp124 Notebook Consultant

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    Tis fine dont worry. It WILL downclock as the laptop cant go higher than 667mhz as Andy said. The 333mhz you see is because it is dual channel (333 x2=667) :)

    Ach you beat me to it flipfire...
     
    t2ppp124, Aug 17, 2008
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    The RAM type is PC6400. The 400MHz is the clock frequency. DDR means that the data moves at twice the clock speed. But it's actually running at 333 = 667MHz because of the chipset.

    If you have any worries about performance then run the SiSoftware Sandra memory bandwidth benchmark. I would expect a result of around 4400MB/s.

    John
     
    John Ratsey, Aug 17, 2008
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  9. findvikas

    findvikas Notebook Deity

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    I thought I know enough about hardware but learning never stops... I am in love with NBR :) Thanks everyone.. a dead pixel and some other weird story made me worry that my RAM is also faulty... huff! what a relax..
     
    findvikas, Aug 17, 2008
    #9