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    GTX480M overclocking

    Discussion in 'Sager and Clevo' started by H-Emmanuel, Nov 14, 2010.

  1. SFVogt

    SFVogt Notebook Consultant

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    SFVogt, Jan 15, 2011
    #51
  2. H-Emmanuel

    H-Emmanuel Notebook Evangelist

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    Oh oh are we embarking onto hardcore GPU votlmodding lol!
     
    H-Emmanuel, Jan 15, 2011
    #52
  3. SFVogt

    SFVogt Notebook Consultant

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    I mean voltage changes via software. Similar to the desktop nVidia graphics cards. Or is it impossible with the CHL8225 chip?
     
    SFVogt, Jan 15, 2011
    #53
  4. Johnksss

    Johnksss .

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    maybe im missing something....just how do you propose to "power on the card" and make changes or test different parts of the board to see if voltage is increased enough or not at all?
     
    Johnksss, Jan 19, 2011
    #54
  5. H-Emmanuel

    H-Emmanuel Notebook Evangelist

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    Yeah I agree on this, software will just read from the drivers that have no idea the card is voltmodded and will report unchanged voltage.
     
    H-Emmanuel, Jan 19, 2011
    #55
  6. SFVogt

    SFVogt Notebook Consultant

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    I won´t increase the voltage! I want decrease the voltage to reduce the temperature and power consumption. A test of voltage changes is to find out the max clock frequencies?! Example:

    0,850V ... ~ 520 / 1040 MHz GPU overclocking
    0,825V ... ~ 450 / 900 MHz GPU overclocking (example/estimated)

    I hope next NiBiTor can change the GTX 480M voltage as at GTX 285M (example).
     
    SFVogt, Jan 24, 2011
    #56
  7. Honorhorror

    Honorhorror Notebook Enthusiast

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    Hello Mr. Soviet Sunrise. I am acutally trying to overvolt my GTX460M which runs at 0.95v when running demanding 3D applications. Actually I am already using an overclocked BIOS with core815,shader1630 and memory3330(tested by various games, 3Dmark06 and furmark,totally usable), but I am pretty sure the chip(gf106) still has some potential if I can manage to overvolt it even it's a mobile version.

    The problem is, I've experimented quite a bit with rambios,nibitor,fermi bios editor and even winhex, trying to set a higher voltage than 0.95v for demanding 3D mode. Unfortunately, I've read from MVKtech that as they can't find evidence in the GTX460M bios for it to support a voltage other than 0.85v and 0.95v, the only thing possible with Nibitor(newest version 6.0) is to modify the clockrates.

    I've read on this forum about your wonderful work--modifying GTX480M's voltage from 0.85v to 0.9v. Therefore if by any chance you can try to help me change the highest voltage of GTX460M from 0.95v to 1v or 1.05v, I'd be vvvery grateful.
     

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    Honorhorror, Feb 2, 2011
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