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Thread: ga-ma790x-ds4 Amd 9950be voltages?




  1. #1
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    Default ga-ma790x-ds4 Amd 9950be voltages?

    I have a GA-MA790x-DS4 and a AMD Phenom 9950 BE 140w processor,

    while looking at CPU-z and the bios i noticed that the core of my processor is set at 1.376 volts at stock, no overclocking but in searching with my board there seems to be no way to set the core voltages any lower than that. looking at the specs on the AMD site it lists stock voltages at 1.05 - 1.30

    Everything setting on the bios is stock for the CPU RAM and otherwise.

    using the advanced bios i got nowhere, any help would be appreciated

    Last edited by Forge; 09-05-2009 at 11:58 AM.

  2. #2
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    Default Re: ga-ma790x-ds4 Amd 9950be voltages?

    Which bios version does your board use now ?

    HT seems also not stock value to me...

  3. #3
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    Default Re: ga-ma790x-ds4 Amd 9950be voltages?

    Quote Originally Posted by felix_w View Post
    Which bios version does your board use now ?

    HT seems also not stock value to me...
    right now Im using the f9 bios which was released last month

    if it makes any difference i have the 140w 9950 BE
    Last edited by Forge; 09-15-2009 at 05:21 AM.

  4. #4
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    Default Re: ga-ma790x-ds4 Amd 9950be voltages?

    did you reset to default values & restart after loading new bios ? it can also be done with battery removal for 2-3 min...

  5. #5
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    Default Re: ga-ma790x-ds4 Amd 9950be voltages?

    I bet that cpu is putting out a little more heat than it should be. I found this program very useful in Windows to reduce cpu vcore They call it CPU VID but it is CPU vcore voltage. Also what they call NB VID is really CPU NB VID. This is the voltage for the memory controller on the cpu. That's right with this program you can adjust them both in Windows and also adjust the CPU core multipliers, raise for performance. If you want to get it quiet you can use some other settings that reduce voltage and lower cpu core multipliers as well. Please try it post back and let us know what you think.----> PhenomMsrTweaker: Cool & Quiet customized
    Last edited by artdrivers; 09-16-2009 at 10:17 AM.
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  6. #6
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    Default Re: ga-ma790x-ds4 Amd 9950be voltages?

    Ok, see mine :



    All, i can say is that this Gigabyte board gives 0.044V more in CPU than set in bios (or auto value)...

    I also had a similar discussion with Gigabyte's technical support for the DDR2 voltage, when i discovered that the board is feeding the RAM with ~0.08V more...to have the desired number of 2.05V, i had to set 1.975V...I have measured these voltages with DMM to be sure...

    EDIT : I just saw on AMD's website that Voltage range for 940BE is 0.875-1.5V, so i guess that my hypothesis was wrong...Also Coretemp & Everest report that CPU VID is 1.35V...


    You can try to lower the CPU voltage by 0.05 or more to see if your system is stable in the stock CPU speed with lower voltage. Your gain will be probably lower temps...

    If you have time for something more complicated but efficient, then you can try PhenomMsrTweaker that artdrivers above suggested, or even K10Stat (version 0.91) (Helpthread)
    Last edited by felix_w; 09-16-2009 at 09:19 PM.

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