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    Undervolting with RMClock and a P7450

    Discussion in 'Asus' started by tufty1974, Sep 16, 2009.

  1. tufty1974

    tufty1974 Notebook Guru

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    Sorry for all the newb questions, but I have another one...

    Further to my confusion about Speedstep, I decided to try undervolting to save a bit of heat and gain a few more minutes of battery. Using RMClock and following the very useful guide posted in the Hardware/Mods section of the forums, I have managed to get down to 1.000V on all 3 multipliers (6x-8x, not many compared to the CPU used in the guide!) but the option for SuperLFM is greyed out. Has anyone managed to get RMClock to identify the P7450 as a compatible processor (assuming it is of course)?

    I think it may be compatible with SLFM, since if I use an older version (1.40.5) of CPU-Z, I see the CPU speed drop as low as ~580MHz (I think the version of CPU-Z one uses to determine the clock speed is important here!) so I guess it's clocking at the right frequencies, I just can't set the SLFM volts in RMclock. I think the P7450 is locked to a minimum of 1.000V as well, since I can't get any other options in RMClock.

    Any thoughts or guides (other than this one: http://forum.notebookreview.com/showthread.php?t=228934) that anyone can point me to?

    EDIT: I think the issue is that RMClock doesn't recognise the chipset in my G50VT-X5 as being SLFM capable, it reports "Unknown (8086:2917)" as the chipset.
     
  2. E.B.E.

    E.B.E. NBR Procrastinator

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    Consider CPUGenie (commercial) or CrystalCPUID (free, but very fly-by-night and buggy in my experience) as alternative applications to use for undervolting.
     
  3. TevashSzat

    TevashSzat Notebook Deity

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    Check the part about undervolting in my guide (look at sig).

    It was written for the P7350 but it should work fine with the P7450 too
     
  4. tufty1974

    tufty1974 Notebook Guru

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    Thanks to both of you for the tip on CrystalCPUID and the very helpful guide, it's much appreciated, especially the part about fixing the undervolt when resuming from sleep (my lappy sleeps a lot!).