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    Help setting up ThrottleStop to reduce heat

    Discussion in 'Sager and Clevo' started by mortalcombat, Nov 5, 2012.

  1. mortalcombat

    mortalcombat Notebook Consultant

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    I am trying to set up throttlestop in order to reduce the heat from my CPU since my fans are always on even when idle. (I don't mind the fan noise when I'm doing something, but I want to try to find a way to reduce the need for fans when idle such as viewing a word document or pdf)


    How should I configure it to do that?

    Possible setups:
    1. Undervolt
    2. Reduce clock speed
    3. Reduce multiplier
    4. Turn off some cores

    I have a 3720QM
     
  2. Silverfern

    Silverfern Notebook Deity

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    what are you temperatures
     
  3. mortalcombat

    mortalcombat Notebook Consultant

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    40-45 when idle.. I just want to decrease then need for fans when idle
     
  4. Zymphad

    Zymphad Zymphad

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    Just set the multiplier to Turbo and then the option for Power Saving will be available. In the option you can set C0 % to 50% or whatever. That means it won't ramp up Turbo until usage reached 50%
     
  5. unclewebb

    unclewebb ThrottleStop Author

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    I do not think that ThrottleStop is going to be able to help you with your problem. Playing around with ThrottleStop is not going to significantly reduce idle power consumption. What you really need is some software to control your fan speed.

    1) You can not under volt a Core i mobile CPU.

    2) & 3) Reducing the clock speed by reducing the multiplier might make your CPU a little sluggish but it won't significantly decrease overall power consumption. Slowing down a CPU usually has the opposite effect. A slow CPU is an inefficient CPU so it will take longer to get a task done. A slow CPU will consume less peak power but because it takes longer to get any given task done, it tends to use more overall power. You can try the Disable Turbo option in ThrottleStop or you can use a reduced multiplier but it probably won't solve your problem.

    4) At idle, turning off cores does not make a significant difference to power consumption. When a Core is in the C6 sleep state, it is already as close to turned off as you can get. Disabling a core in the bios if you have that option or disabling it via Windows is not going to make any huge difference to power consumption when the CPU is idle.

    Make sure your CPU is set up so that it is using the deeper sleep states like C6.

    [​IMG]

    The above 3570K desktop CPU has the 4 individual cores spending 99% of their idle time in the C6 sleep state. I found the CPU Package sleep states on this motherboard increased power consumption as measured with a Kill-a-Watt meter so I have the Package C States disabled. In theory, using the deeper Package C states should reduce power consumption so this issue might be specific to the Asus motherboard that I am using.

    Eliminate background tasks on your computer and try to increase the C6 or C7 percent time as high as possible. Some motherboards use the C7 sleep state but some boards leave this sleep state turned off.

    Turn off ThrottleStop GPU monitoring. This can interfere with your GPU staying in a low power sleep state.

    Intel CPUs are very efficient at idle so there is not much you can do other than make sure they are operating correctly. Laptop manufacturers need to reduce fan speeds when the CPU is idle. CPUs don't work very hard or put out a lot of heat when sitting at the desktop, typing in Word or typing an email or during light internet use.
     
  6. mortalcombat

    mortalcombat Notebook Consultant

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    If i turn off C3 and C1 Auto Demotion my c6% increases a lot so that's a start
     
  7. mortalcombat

    mortalcombat Notebook Consultant

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    Is 40 - 45 degrees normal when idle? room temp is around 15-20