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    OC advice 8600m gt

    Discussion in 'Gaming (Software and Graphics Cards)' started by stevenxowens792, Jul 31, 2007.

  1. stevenxowens792

    stevenxowens792 Notebook Virtuoso

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    Ok, I have a Dell 1520 with the 8600m gt 256. ON Vista. I downloaded ntune and installed. Running in Windows sp2 mode as administrator.

    I clocked the core at 540 and memory at 475. I then ran the stress tests and it runs for 4 minutes or so. Then Ntune.exe fails and the test screen goes black. Keep in mind, the whole machine doesn't shut down, only that screen. Do you think I have overclocked too much, or is ntune just being a pain?

    Thanks,

    SXO792
     
    stevenxowens792, Jul 31, 2007
    #1
  2. hlcc

    hlcc Notebook Evangelist

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    thats a very minor overclock,
    i'm not sure about the memory, but the core can be overclocked dramatically.
    I have my desktop 8600GT's core running at 700. The mobile and desktop cores are identical.
     
    hlcc, Jul 31, 2007
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  3. thegsrguy

    thegsrguy Notebook Deity

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    It probably means you overclocked too much. Start at the base speeds and move up in 15-20MHz increments until it becomes unstable, then go back down a bit.
     
    thegsrguy, Jul 31, 2007
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  4. ShadowoftheSun

    ShadowoftheSun Notebook Consultant

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    Just a question, what drivers are you using? I've heard 162's tend to switch back to pre-overclock speeds and are basically unusable to overclock in general. 158's seem fine.
     
    ShadowoftheSun, Jul 31, 2007
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  5. bigspin

    bigspin My Kind Of Place

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    Have Aspire 5920G with GF8600M GT & clocked it to GPU 594Mhz /Memory 474Mhz.Always use ATITool to search artifacts.
    I use driver version 158.45 from laptopvideo2go.com

    Play STALKER /NFS-CARBON without problem. :D
     
    bigspin, Jul 31, 2007
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  6. unknown555525

    unknown555525 rawr

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    I know it's not related to notebooks, but I use Ntune to OC my 8800GTS on my desktop. The only time this happens to me is if I OC my SYSTEM ram too far, not the GPU. Usually if I OC the GPU too far, it either causes just very noticable black artifacts, or just freezes.

    You may want to run a system memory test.
     
    unknown555525, Jul 31, 2007
    #6