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    Strange Core2 Duo Behavior

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by coolink, Feb 14, 2008.

  1. coolink

    coolink Notebook Geek

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    My D630 came with a T7100 (1.8Ghz) processor. When i open CpuZ, the frequency changes from 1.8 to 1.2 and then back to 1.8. The multiplier changes from 9x to 6x and back to 9x. Is it normal?

    I ran Sandra Arithmetic benchmark and the results are very strange. My Dhrystone ALU gave me about 13.558 MIPS. According to another T7100 review it has to be about 16.000 MIPS. Whetstone is ok and the other CPU test too. Can my CPU be damaged?
     
    coolink, Feb 14, 2008
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  2. kuncheesh

    kuncheesh Notebook Evangelist

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    yes this is normal.......this is due to the intel speed step architecture which gives full power to cpu only when needed to save power and heat
     
    kuncheesh, Feb 14, 2008
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  3. adinu

    adinu I pwn teh n00bs.

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    Not strange at all, actually it's quite normal.

    Google intel speedstep.
     
    adinu, Feb 14, 2008
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  4. coolink

    coolink Notebook Geek

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    OK about speedstep, but what about the SAndra arithmetic benchmark?
     
    coolink, Feb 14, 2008
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  5. powerpack

    powerpack Notebook Prophet

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    Bottom left symbol all the way left is options open make sure all boxes are checked. Yes that does seem low.
     
    powerpack, Feb 14, 2008
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  6. coolink

    coolink Notebook Geek

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    All boxes are checked. Note is AC powered. All power savings are disabled. All performance settings in Bios are enabled.
     
    coolink, Feb 14, 2008
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  7. powerpack

    powerpack Notebook Prophet

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    Only a guess but what are you running in the background? And are you using Vista? I have heard people say some anti-virus (Norton) are resource hogs.
     
    powerpack, Feb 14, 2008
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  8. coolink

    coolink Notebook Geek

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    I run XP SP2 and NIS2008, but I don't think this is the problem, cause all other tests results are OK, only the dhrystone is strange.
     
    coolink, Feb 14, 2008
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