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    Submit your CPU undervolt settings and Advice

    Discussion in 'HP' started by breezie, Oct 19, 2005.

  1. breezie

    breezie Notebook Consultant

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    In The HP/Compaq forum because I'm particularly interested in the v2000z. Mods: feel free to move this thread to another section if you believe needed.

    Hopefully the thread seems self-explanatory. This should be helpful for those wishing to try undervolting or for those who would like to test out new and superior settings.

    Simply provide information about your:

    -CPU
    -Undervolt Settings used
    -Computer Model Details
    -Advantages from settings (battery life difference, etc)
    -Any other information you believe would be helpful





    Additional Information

    Undervolting is obtained by adjusting the default settings on a machine in order to lower its heat and power output. This allows it for a computer to have longer battery life and cool down easier so that heatsink fans turn on less and stay quieter. Undervolting is also believed to prolong the life of a machine’s hardware.

    By itself, undervolting should not lower a computer’s performance, but things done to make undervolting more efficient and effective such as underclocking and changing power savings options will.

    Software for undervolting

    RightMark CPU Clock Utility (RMClock) is a small GUI application designed for real-time CPU frequency, throttling and load level monitoring and on-the-fly adjustment of the CPU performance level of the supported CPUs via processor's power management model-specific registers (MSRs). In automatic management mode it continuously monitors the CPU usage level and dynamically adjusts the CPU frequency, throttle and/or voltage level as needed.

    Download here
     
    breezie, Oct 19, 2005
    #1
  2. acidfast7

    acidfast7 Notebook Enthusiast

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    HP dv4000
    P-M 760 2.0GHz / 533MHz FSB
    128MB X700
    1.25GB PC2-4200
    80GB 4200rpm
    DVD burner
    6 cell

    I have modified my 15x mutliplier (15 x 133 = 2.0GHz) from 1.356V to 1.148V, using Notebook Hardware Control, and was Prime95 stable O/N. Runs games on 1280 on high details with this voltage. I tried 1.100V and Prime95 crashed within ~1h. 1.000V locked the machine at 15x.

    I run 100% 24/7 because I like to fold protein. Temps went from 70-75C max at stock voltage to ~56-60C max when undervolting. Quite a difference if you ask me. When I'm idle on battery (reading or Word) the undervolted temps run from 46-52C. Highly recommended.

    Good luck all.
     
    acidfast7, Oct 19, 2005
    #2