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Problems problems

Discussion in 'Nvidia' started by Jb, Jul 30, 2005.

  1. Jb

    Jb Guest

    I've just built a new nachine as follows:
    Gigabyte GA-K8NXP-SLI board
    Gigabyte GV-3DI card (the twin 6600GT gpu that came with the board as a
    1 gig elixir ram
    120 Maxtor Hard drive
    Colorsit 550Watt PSU
    AMD Athlon64 3.2 Skt 939
    WinXP SP2 and all updates
    DirectX 9.0c
    3Dmark05 and Joint Ops (a game that came with the card) No other progs
    installed at the moment.

    Problem - The graphics are AWFUL!
    Using the included drivers 3Dmark gave a score of 5906 BUT in the second
    part of the test the screen was just totally scrambled

    Joint Ops runs but there are parrallel lines down the left hand side of the
    screen and a single line horizontlally in the middle of the screen. Where
    they cross is a solid rectanglular block of colour. Green if it matters

    Screen set at 1024x768 x 60Mhz

    Exactly the same results occur with the Nvidia beta 77.76 drivers.

    There is a 'tweak' programme on the driver disk but any changes made with it
    from default make things worse as does using any of the preset Nvidia game

    What am I missing?

    Many thanks - Jb
    Jb, Jul 30, 2005
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  2. Jb

    First of One Guest

    Those lines show how the screen is divided up for SLI load-balancing between
    the two chips. It's a debug/demonstration feature that probably got turned
    on by accident. There should be a checkbox in the driver panels (where you
    can also select between split-frame rendering or alternative-frame
    First of One, Jul 30, 2005
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  3. Jb

    doctor.ratt Guest

    is windows xp the home or pro version?
    i recall reading that dual gpu requires pro.

    dr ratt
    doctor.ratt, Jul 30, 2005
  4. Jb

    Jb Guest

    Many thanks for the speedy replies and in response to doctor.ratt I have Xp
    Pro not the home version.

    First of One, much respect, you hit the nail on the head. In the SLI
    configuration panel I had turned the 'Show load balancing' option ticked.
    Unticked it and the game plays fine.

    In 3Dmark however I now find the score to be a max of 3513
    Test1 - Highest FPR 24 Ave - 15
    Test2 - 23 8
    3 21 12
    4 2 1
    5 5 3

    But all scenes are clear and viewable

    Any thoughts on why such a low score?

    Thanks Jb
    Jb, Jul 30, 2005
  5. Disable "Show GPU load balancing"
    Robert Hancock, Jul 30, 2005
  6. Jb

    First of One Guest

    I'm surprised you didn't read about all the SLI "features" before spending
    so much money on such a combo. :)
    You might want to toggle between split-frame rendering and alternate-frame
    rendering and see which one gives you better results. Make sure your 3DMark
    app is patched to the latest version, too. nVidia's SLI implementation isn't
    as robust as 3dfx's from the old days.
    First of One, Jul 30, 2005
  7. Jb

    Jb Guest

    Oh I read about SLI till it made my teeth itch :) That was partly the
    problem! When I researched SLI I found this:
    http://www.guru3d.com/article/Videocards/185/3/ and set it as per the

    I suspect you may be right, again, but the setting 'Alternate Frame
    rendering and Split frame renedreing are not there? Not greyed out unusable,
    not there at all. I am now using the latest drivers from Nvidia and 3d mark
    is a fresh download.
    I tried Nvidias game settings which brought me to a new quirk. The Global
    settings has disappeared and my only option is to modify one of the existing
    pre-sets. I'm a recent convert to higher end cards and CPUs so messing
    around is not something I'm really comfortable with at the moment.
    Steep learning curve or what!

    Thanks Jb
    Jb, Jul 30, 2005
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