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    nVidia GeForce 8600M GT 256MB MXM upgrade problem

    Discussion in 'Acer' started by terrordar, Oct 24, 2010.

  1. terrordar

    terrordar Newbie

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    Hi

    I have an Acer 5920g with a nVidia GeForce 8600M GT 256MB. Recently the GPU died (black screen at startup). So I bought another nVidia GeForce 8600M GT 512MB from eBay.

    After installing the video card I am experiencing some strange problems. At random, every 10-60 seconds some graphic corruption appears on the screen for a fraction of second. Otherwise the video card works fine, it is recognized by Windows and does not crash my system.

    The new video card was installed correctly and stays at about 80 C° when idle. I have the latest graphic driver, DirectX, Windows updates. I do not have any virus or malware.

    If I unistall the drivers and use the generic Windows drivers I do not experience the corruption. But with the official nVidia drives I get the problem. I tried a clean reinstall with several version of the drivers but I get always the same problem.

    Does anybody know any reason why I could get this problem?

    Thanks in advance.
     
    terrordar, Oct 24, 2010
    #1
  2. hexxor93

    hexxor93 Notebook Consultant

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    Most 8600m GT got this. Try using old drivers(195 or 185) seems to stop the odd graphic appearing but the high idle you may need to check over your cooling system.
     
    hexxor93, Oct 24, 2010
    #2
  3. TehSuigi

    TehSuigi Notebook Virtuoso

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    80 degrees idle is way too high; those graphic corruptions could be due to heat.
    Did you reapply some thermal compound on the GPU core when you completed the swap? Are you certain the heatsink is making good contact with the GPU core?
     
    TehSuigi, Oct 24, 2010
    #3
  4. terrordar

    terrordar Newbie

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    Hi again

    I re-applied the thermal paste and now the temperature is 65C when idle and 80-85C when playing. The artifacts problem seems however indipendent from the temperature.

    I experimented a bit with the drivers. Using the official Asus Nvidia drivers, the corruption problem disappears. Using the latest Nvidia drivers instead, the corruption still exist.

    Is it normal that the latest drivers are not supported? Could I find some unofficial drivers somewhere?
    The Asus drivers are quite old. If I use them instead of the latest ones, how much of performance loss should I expect?
     
    terrordar, Oct 28, 2010
    #4
  5. TehSuigi

    TehSuigi Notebook Virtuoso

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    Unofficial drivers can easily be found at http://www.laptopvideo2go.com; just pick the version you want, and slide the Modded INF file into the install directory (that INF is what unlocks the driver to be installed on just about anything).
     
    TehSuigi, Oct 28, 2010
    #5
  6. PixelAeo

    PixelAeo Notebook Enthusiast

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    I had an 8400 GS which would get to over 100 C while playing UT3. Never had any glitches. It just got really hot. :)
     
    PixelAeo, Oct 29, 2010
    #6