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    Need Help OC'ing GPU

    Discussion in 'Dell XPS and Studio XPS' started by I Never Relax, Aug 8, 2010.

  1. I Never Relax

    I Never Relax Notebook Consultant

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    Specs: Studio XPS 1640, Intel C2D P8700, ATI Mobility Radeon 4670, 4 GB DDR3 RAM, BIOS A14

    Downloaded GPU-Z and latest Riva Tuner. Edited the .cfg file so it could work with the GPU.

    I tried to increase the clock speed and memory speed, but every time I try to play a game, the card would stop working. For instance, the title screen for Dragon Age was tearing, there were pixel blotches, and when I tried to access the video settings, the card failed on me. Is there any way to OC the GPU without these problems?
     
    I Never Relax, Aug 8, 2010
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  2. killaz05

    killaz05 Notebook Evangelist

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    Well how high are you going?
     
    killaz05, Aug 8, 2010
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  3. I Never Relax

    I Never Relax Notebook Consultant

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    Went from 650 MHz to 710 MHz (Core). Not sure what the base is for Memory, but I went to 900 MHz.
     
    I Never Relax, Aug 8, 2010
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  4. gpig

    gpig Notebook Deity

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    Some cards can be OC'd more than others, even if it's an "identical" card (i.e. two 4670s). If you're seeing artifacting or visual anomalies it means you OC'd too much.

    If you're going to OC do it the right way. Bump up values 10 MHz at a time, and run a good benchmark between each validation. Keep doing it until you see visual problems or a system crash. Then lower by 15MHz from that value, and you're all set.
     
    gpig, Aug 8, 2010
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  5. killaz05

    killaz05 Notebook Evangelist

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    I agree with the above post. Also try running the latest driver for the 4670. Every card is different. I had my motherboard replaced hence a new GPU and I can overclock this card a lot higher than my old one. So try bumping every 10 MHz and run a benchmark like 3Dmark or something. Hope it works
     
    killaz05, Aug 8, 2010
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