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    help overclock my NP8760

    Discussion in 'Sager and Clevo' started by lime324, Feb 12, 2011.

  1. lime324

    lime324 Notebook Enthusiast

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    hi guys,
    I'm really new to overclocking and never done any of this before, but I'm just curious if I overclock my NP8760 would it gives me significant performance??

    whats the pro and con for overclocking, especially with my specific spec? and the most important is, what is the risk??

    i7 Q720 1.6 GHz
    GTX 280M 1024MB GDDR3

    thanks guys
     
  2. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    You can overclock the GPU but not the CPU.

    You can overclock the GPU from within the nvida driver using nvidia system tools. Up the clocks a little at a time then test with OCCT. Do the core, then the memory seperately in increments of 10 or so. Once you've found that max it's stable at, back that down 2% and there you go.

    The pro to any overclocking in general is better performance, in this case: much better gaming performance. The cons are usually increased heat and power usage. Just monitor your temps and you should be fine.
     
  3. lime324

    lime324 Notebook Enthusiast

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    Hi JohnnyFlash, I just install those both programs.
    another question:
    1. from what you saying, I should up the core, then memory, but what about the shader? should I change it or leave it?
    2. Basically I should raise the core 10MHz, then do the test, then raise it again and test again until I get the max, then move on to memory and do the same thing, right? or I should raise all of them at the same time??
    (coz I read on another forum they raise all the same time)
    3. I don't really get about that 2% back down from max settings, can you give an example?
    4. since I only messing with GPU, so I should only do the test from GPU:OCCT tab, right? is there any setting I should tweak within OCCT as well? or just go ahead and click the ON button?

    thanks for your reply
     
  4. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    That's how I do it, everyone has their own style, I'm a little more anal than average probably.
     
  5. lime324

    lime324 Notebook Enthusiast

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    great! thanks for all the answer, I should try it now and post here the results ;)
     
  6. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    Awesome! Goodluck!
     
  7. lime324

    lime324 Notebook Enthusiast

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    I just run some test with this OCCT and my GPU temp would easily reach 80 degrees and over, from what I know this stress test would push my card to it's limit, right? so how long should I run this test between each increment settings?
     
  8. lime324

    lime324 Notebook Enthusiast

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    update: I just raised my clock by 10 MHz and the shader by 25, run OCCT for 10 minutes, and I got 6 errors and 1 artifact (white dot), my GPU temp goes up to 90 degrees.
    did I do something wrong? I only raise 10 and got errors, is this mean I can't overclock my gtx 280m??
    is there any way to control the fan in 280m?

    pls help
     
  9. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    Hrm, try a different driver. Most importantly though, if you feel your skill level is high enough, I would re-apply the thermal paste on the GPU.
     
  10. lime324

    lime324 Notebook Enthusiast

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    I'm using the latest 266.58 whql right now, any recommendation on another stable driver?

    I also using furmark to test my OC, and for about 5 minute on furmark I don't see any artifact, and my temp could go just about 85 degrees. why it's so heavy on OCCT with same amount of time??

    I don't think I can apply that thermal paste, don't have the skill and tools
     
  11. JohnnyFlash

    JohnnyFlash Notebook Virtuoso

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    In my oppinion OCCT is better for testing. That's just my oppinion though, both do push pretty hard. Does it pass checking at stock? I do agree that 90 is too high.
     
  12. lime324

    lime324 Notebook Enthusiast

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    yes, they both pass checking at stock clock.
    and I'm facing a new problem here, after several testing (using furmark) I finally reach my max at 625/1565, I tried on 630 and got the "kernel memory driver 266.58 stop responding and recovered" error message, now I went back to 625 setting but when I test it again it wont pass the 383/766

    I tried restarted my machine and even set the clock back to it's original stock but it still gives me 383/766, it's not even reach the stock clock settings which is 583/1450, what the heck went wrong??

    is this the driver issue?
     
  13. oan001

    oan001 Notebook Evangelist

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    Hi, this happened to me aswell when overclocking my gtx 285m. However, I fixed the throttling by rebooting. Try reinstalling the drivers.
     
  14. lime324

    lime324 Notebook Enthusiast

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    thanks for the reply, I did reboot my machine but it still gives me the limited clock.
    I didn't reinstall my driver tho, instead I downgraded to version 260.99, I don't know which driver is the most stable out there so this is just trial and error.

    It still gives me errors on OCCT with only less than 10 Mhz push on the core clock, I really have no clue how reliable the error report on OCCT. I run some benchmark on 3mark vantage and it runs smooth without crashing, and it did gives me some improvement, I tried crysis warhead benchmark and the result is pretty good as well. why does OCCT always give me some error??

    also, any suggestion which driver I should use (most stable one) ?
     
  15. lime324

    lime324 Notebook Enthusiast

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    update:
    some things that I still confuse bout this OC thingy
    whenever I set my core/shader clock to 590/1470, on GPU-Z would read 585.7/1450 under stress test and it pass OCCT test
    when I push the core/shader to 595/1474, GPU-Z would read it as 600/1450 and it also pass the test
    but, when I push them just a tad to 596/1475, GPU-Z shows 600/1500 and it would start fail the test and gives me errors

    why the core and shader always shows different on the monitor than the actual settings?
    does this mean I can only push my card to about 595/1474?