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Thread: Powersaving cpu options...

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    Senior Member Hicks12's Avatar
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    Powersaving cpu options...

    Well i was wondering if they actually make a difference? For example intel speedstep, now how can changing the processor speed affect power usage when ive set the voltage to the cpu to only 1.08v. Does it actually work? Or should i disable all these cpu options, because i believe my pc would perform better and shouldnt use any more power with them off, am i right?.

    Also, can you change the values for gpu's for idle? Mine idles at 160 core and 250memory but i bet i could bring it down
    Quote Originally Posted by snootyjim View Post
    Trust me, go into any local club and shout "I've got dual Nehalem Xeons" and all of the girls will practically collapse on the spot at the thought of your e-penis

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    Get in the van. Fraz's Avatar
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    Re: Powersaving cpu options...

    Quote Originally Posted by Hicks12 View Post
    For example intel speedstep, now how can changing the processor speed affect power usage when ive set the voltage to the cpu to only 1.08v. Does it actually work?
    The power usage of a CPU scales linearly with frequency, and quadratically with the voltage.

    I.e: double the frequency, you double the power usage
    double the voltage, the power usage goes up by 4 times.

    Simple as that really. So yes, it does actually work.

  3. #3
    Senior Member Hicks12's Avatar
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    Re: Powersaving cpu options...

    But surely if your giving it a fixed amount of power then it cant go over that?/
    Quote Originally Posted by snootyjim View Post
    Trust me, go into any local club and shout "I've got dual Nehalem Xeons" and all of the girls will practically collapse on the spot at the thought of your e-penis

  4. #4
    Get in the van. Fraz's Avatar
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    Re: Powersaving cpu options...

    Quote Originally Posted by Hicks12 View Post
    But surely if your giving it a fixed amount of power then it cant go over that?/
    Why do you think you're giving it a fixed amount of power?

  5. #5
    Senior Member Hicks12's Avatar
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    Re: Powersaving cpu options...

    By setting a fixed voltage? I thought that was the power, where else can it get it from?
    Quote Originally Posted by snootyjim View Post
    Trust me, go into any local club and shout "I've got dual Nehalem Xeons" and all of the girls will practically collapse on the spot at the thought of your e-penis

  6. #6
    Get in the van. Fraz's Avatar
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    Re: Powersaving cpu options...

    Quote Originally Posted by Hicks12 View Post
    By setting a fixed voltage? I thought that was the power, where else can it get it from?
    Power = Volts * Amps.

    You have fixed the voltage at 1.08, but it can draw as much current as it needs.


  7. #7
    Senior Member Hicks12's Avatar
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    • Hicks12's system
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    Re: Powersaving cpu options...

    And to think i did an alevel in electronics . Totally forgot about that.
    Quote Originally Posted by snootyjim View Post
    Trust me, go into any local club and shout "I've got dual Nehalem Xeons" and all of the girls will practically collapse on the spot at the thought of your e-penis

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