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    Undervolt Turion X2 RM-72

    Discussion in 'HP' started by Kingcodez, Mar 14, 2009.

  1. Kingcodez

    Kingcodez Notebook Consultant

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    i'm having major heat problems with my DV4 1220US, If I let my CPU use 100% it shoots up to 80+c on Idle, 105c Under load. The HDD is usually over 55c idle, 65+ under load.

    It's ridiculous considering how cool it is in my apartment, and how I balance the laptop on my right leg, with the whole left side uncovered and allowed to freely vent air.

    I made a power profile that locks the CPU at 75% this helps majorly, however the Default "low power" setting @ 50% is impossible to use this computer with.

    Is this because AMD processors suck? Could that be why the C2D version of this laptop with identical specs costs $200 more?

    I tried to undervolt it with RMClock but it wouldn't let me change anything. There is supposed to be an advanced tab for messing with the voltage but it wasn't there. I was using the latest version of the program, and had all my drivers up to date with a super fresh install of Vista.

    Is there anything special I need to do to get the program to work with a Turion X2 RM-72??
     
  2. gekk_gad

    gekk_gad Notebook Consultant

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  3. brianstretch

    brianstretch Notebook Virtuoso

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    It's not the CPU. My ZM-82 in the smaller dv4z doesn't get anywhere near that hot. HP (or their contract manufacturer in Shanghai) appears to have VERY inconsistent quality control. Assuming that your monitoring program is reading temps correctly, if you feel very hot air coming out of the notebook I'd guess that there's a problem with voltage regulation (bad capacitors, bad power brick, etc). If not, the cooling system isn't doing its job (improper contact between heatsink and CPU, broken heatpipe, etc).

    There have been more than a few posts from HP Intel users with the same problems.
     
  4. Kingcodez

    Kingcodez Notebook Consultant

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    Ok I'm going to look into replacing the Therm Comp with Artic silver.

    But yeah the air that comes out the left rear, is really really hot. Like deff over 120 F even hotter.
    Burns my hand I can't feel it for too long.
    I'm in Beijing so I can't exactly return the thing, I doubt I can bang on HP's corporate door and demand a fix lol.
     
  5. brianstretch

    brianstretch Notebook Virtuoso

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    If the exhaust is that hot then the cooling system is doing its job and Arctic Silver won't buy you much. I've read that poor capacitors can cause overheating, I have to wonder whether that's the case here, but I'm not an EE so I don't know. It definitely sounds like a voltage regulation problem of some kind. Maybe you can make a trip to Shanghai and ask whoever built it what the deal is...

    Dunno what to tell you. HP really needs to deal with this.

    If you can find another compatible HP power brick, see if that helps.
     
  6. Kingcodez

    Kingcodez Notebook Consultant

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    Grr that Guide's program wont work on my laptop :(
     
  7. miner

    miner Notebook Nobel Laureate

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    Did you see any error messages and what voltages did you set for each of the three p states?

    As far as your original problem, 105C are you really sure. What was running when the temps reached 105C? AFAIK, the cpu should downclock at ~97C in order to save itself. If it is reaching 105C then you have a problem or the program you are using isnt reporting the correct temps.
     
  8. Kingcodez

    Kingcodez Notebook Consultant

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    I use HW Monitor for temps, and cross checked with AMD Power monitor, CPU-Z, Speedfan, and some other one.
    I got the undervolting program working.
     
  9. lecaro

    lecaro Notebook Enthusiast

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    I have rm-72 (hp dv7-1110eg)...

    for undervolt i'm using http://amd.goexchange.de/

    I work well

    Of undervolting not even understand how to select the correct values

    HTML:
    <pumastatectrl use_p_state_0_as_max_freq="true" log_file_path="" confirm="false">
      <p_states>
       <pstate number="0" Vid='43'></pstate>
       <pstate number="1" Vid='60'></pstate>
       <pstate number="2" Vid='64'></pstate>
      </p_states>
      <CPU processor_name="AMD Turion(tm) X2 Dual-Core Mobile RM-72">
        <freq_and_max_voltage frequency_in_MHz="2100" max_voltage_in_Volt="1.075">
        </freq_and_max_voltage>
        <freq_and_max_voltage frequency_in_MHz="1050" max_voltage_in_Volt="0.95">
        </freq_and_max_voltage>
        <freq_and_max_voltage frequency_in_MHz="525" max_voltage_in_Volt="0.8">
        </freq_and_max_voltage>    
      </CPU>
    </pumastatectrl>
    If I change the values of max_voltage_in_Volt for different frequencies do not see changes?

    there is chages???

    I can test number="0" VID=43...

    How I choose to pstate1 a correct value for VID?

    Help?!
    :confused:
     
    Last edited by a moderator: May 7, 2015
  10. KING19

    KING19 Notebook Deity

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    Im having that same problem too i wanna set my volts lower than that program default settings any help will be apprecatied
     
    Last edited by a moderator: May 7, 2015
  11. lecaro

    lecaro Notebook Enthusiast

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    Hello... !!!
     
  12. pippopippo

    pippopippo Newbie

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    Using a bugmenot account.
    I finished undervolting AMD RM-72 but using my guide
    Overall there are power savings especial during light usage.
    However at full frequency you can't undervolt much.
    In fact AMD Chips seem pushed to the limits to me.
    Only a -0.025 stable undervolt achieved any higher BSOD occasionally.
    Achieved a undervolt of
    -0.05 @ P-State 1 (Limited to 0.75V due to implementation)
    -0.05 @ P-State 2 (raised due to occasional BSOD)
    -0.025 @ P-State 3 (raised due to occasional BSOD)
     
  13. marvin2

    marvin2 Newbie

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    hello. I have a Compaq CQ40 with a Turion X2 RM-72. My temps reach 104C when on full load and around 75-80C when simply browsing the internet. The exhaust is too hot to touch. I did an image search of the threadstarter's laptop and it seems that the housing of his is similar to the housing of my laptop... so i guess it's with the design...

    I'm also looking into undervolting because i heard it makes the laptop cooler and it also causes the laptop to use less battery without affecting the performance... So... I don't know how to undervolt at all. How do i do it? and what voltage should i set it to and etc...? thanks