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    Overclocking 8600m GT in m1530

    Discussion in 'Gaming (Software and Graphics Cards)' started by kuram, Jul 3, 2010.

  1. kuram

    kuram Notebook Consultant

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    Hi I was going through riva tuner with a friend helping, to overclock my gpu in my laptop, when i came into some conflicting info. My friend swears by overclocking the core clock/shader clock, whereas any other thread or website i've read about overclocking the 8600m GT lists their stock values at 475/700, which is the default values for the core clock / memory clock.

    I was just wondering, which is the correct form to follow? Do I overclock by pushing the core clock and shader clock higher, or the core clock and memory clock higher.

    Thanks for your help.

    Default values are:

    475: core
    950: shader
    702: memory
     
  2. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    Considering your 8600M GT is more prone to failure, I wouldn't overclock it at all. But for your information, that series should follow a 1:2 ratio for core:shader clocks, while memory has no thermistor, so it's very easy to damage it by overclocking.
     
  3. kuram

    kuram Notebook Consultant

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    right thank you
     
  4. dero56

    dero56 Notebook Geek

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    I have a inspiron 1520 with a 8600m gt but with ddr2 vram, ur 8600 has ddr3 ram. Anyway I have overclocked mine from 475/400 to 650/500 and its pretty stable but sometimes i bump it down to 640/490 to be more stable.

    Just for real life results comparison, in 3dmark06 i get 3700 but when i OC i get 4800-4900 points which is just as fast as your 8600m gt with ddr3. My cpu is also only a C2D 1.66ghz, so my cpu score in 3dmark06 is low.

    Also I use Dox optimized drivers but i use the fastest version that works for 32bit windows xp, you can check out laptopvideo2go for dox optimized drivers because they really do help speed up your videocard.

    Based on my card compared to yours you should be able to go 600/1100/800, To my knowledge, the core/shader clocks give the most boost compared to memory. The memory gives a small boost but just adds more stress and heat. Maybe to be safe just try 550/1050/750 overclock on your card since it gets more stressed than the ddr2 version.

    But get atitool and test these values in it with the artifact scanner to see if it will be stable. Although atitool hides the shader tuner, it is linked with the core so don't worry too much about it, it will still be increased even though u cant see it change.
     
  5. Kilador

    Kilador Notebook Consultant

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    Hey, I have the same laptop, and it overclocked pretty sweet in mine :)

    You should push the core clock first, clock it to 500, 550, 600... and test gaming in each value to asure stability. Also, check the temperatures on each test.
    I wouldn't overclock the memory more than 100mhz more, as it has no temperature sensor on it, it all depends on how are temperatures on your card, I was pretty lucky and pushed it to almost 5800 3DMark06 fully stable :)
     
  6. SimoxTav

    SimoxTav Notebook Evangelist

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    I dinamically overclocked the card with the same frequencies of the 9700m GT (downclocks in windows environment) and it is stable in every game (max temp reached 90°C without cooling pad while playing Anno 1404 and Settlers 7 after 1 hour). With a custom cooling pad i usually stay on 85° - 87°C.
    By the way i also undervolted my C2D T9500 with RMClock to lower the heat.
    No issue at all and i bought the NB on May 2008. Bios Rev A12 ;)