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Evga gtx 970 ssc help

so i didnt get an answer for the first post i made so maybe we'll have some luck this time lol. ive been trying to find a nice stable overclock for my card. Yesterday i thought i found it with +110 clock speed and +585 mem clock with +87 core voltage (my gpu doesnt like anything more that +100 clock speed without voltage being touched for some reason). It was all stable and it had no problem running for 1 hour on valley bench mark. Today however, its like that never happened. Its back to crashing as soon as i start up valley. Another thing ive notice aswell is that my card's usage never goes past 80% on benchmarks now aswell as games. i dough my system is a bottleneck but just in case ill post my specs down below. My questions are why is it that one day my OC is stable and works and the next it doesn't and is there a way to get the gpu to 100% usage. I have a feeling the usage is what's causing this
My specs:
EVGA gtx 970 SSC
Intel Core i7 4790k Devil's canion at 4.4ghz (turbo clocked)
MSI z97 gaming 5 motherboard

My bad if im not supposed to repost but i seriously want to know whats going on with my OC
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  1. what do you have your power limit set to? how are you determining that your card doesn't go past 80% usage? what program are you using to overclock? how many different nvidia drivers have you used? have you tried flushing your gpu drivings using ddu?

    you definitely do not have a bottleneck. you should hit 100% usage in benchmarks like valley etc.
  2. nikoli707 said:
    what do you have your power limit set to? how are you determining that your card doesn't go past 80% usage? what program are you using to overclock? how many different nvidia drivers have you used? have you tried flushing your gpu drivings using ddu?

    you definitely do not have a bottleneck. you should hit 100% usage in benchmarks like valley etc.


    power limit is set to 110% with temp priority, im using afterburner to monitor usage aswell as overclocking. ive tried using the drivers that came with the card aswell as the most updated one but still no change. As for flushing my gpu, i dont exactly know what that is but ill see if that does something
  3. Best answer
    http://www.wagnardsoft.com/forums/viewtopic.php?f=5&t=776
    use that to flush your gpu drivers.

    http://www.nvidia.com/Download/Find.aspx
    reinstall the lastest nvidia drivers.

    that will rule out any driver conflicts. i would disable any overclock or any settings you have made made to the power limit and retest your card using a benchmarking program like unigine valley and have msi afterburner log your cards parameters to see if you are hitting 100% usage and there isn't any throttling going on.
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